Overview: Used Trucks San Diego County for Global Markets

INDUSTRIAL SPECIFICATION REPORT 2026: EXECUTIVE OVERVIEW

Subject: Operational Deployment of Refurbished Class 8 Trucks (Sourced: San Diego County) in Global Resource & Infrastructure Sectors

1. Core Value Proposition

SEA LION International Trade Co., Ltd. delivers rigorously refurbished Class 8 vocational trucks (primarily EPA 2010+ compliant models sourced from San Diego County fleets) optimized for high-stress environments. San Diego’s stringent CARB emissions enforcement and diverse terrain (coastal, urban, desert-adjacent) yield trucks with demonstrably superior component longevity and maintenance discipline versus national averages. These units undergo SEA LION’s 182-point industrial refurbishment protocol, targeting critical failure points in mining, heavy haulage, and large-scale construction.

2. Sector-Specific Application & Performance

Refurbished San Diego-sourced units exhibit exceptional ROI in three core sectors due to pre-existing duty-cycle conditioning:

Sector	Primary Application	Key Performance Advantage	SEA LION Value-Add Refurbishment Focus
Mining	Haulage (Overburden/Ore), Site Support	Proven durability on abrasive terrain; EPA 2010+ engines withstand high particulate loads	Reinforced suspension, enhanced cooling systems, DPF/SCR recalibration
Logistics	Heavy Regional Haul, Intermodal Drayage	High-mileage reliability; optimized for stop-start cycles	Transmission rebuilds (Allison/Eaton), brake system overhaul, telematics integration
Construction	Aggregate Transport, Heavy Equipment Haul	Structural integrity for uneven site access; high GVWR capacity	Frame straightening, axle reinforcement, hydraulic system validation

3. Global Market Preference: Africa, Russia, Southeast Asia

While SEA LION distributes SINOTRUK/SHACMAN/XCMG new units globally, refurbished US-sourced trucks (ex-San Diego) are strategically preferred in target emerging markets for quantifiable operational reasons:

• Africa (Sub-Saharan):

  • Why Preferred: EPA 2010+ engines tolerate extreme dust/particulate levels better than pre-2010 US or common Asian-market engines due to advanced filtration (DPF) and robust turbo systems. Proven reliability on poor infrastructure reduces downtime.
  • SEA LION Adaptation: Custom air intake routing, extended service intervals for lubricants/coolants, localized spare parts kits (mining belts, common failure items).

• Russia (Siberia/Arctic Zones):

  • Why Preferred: Cummins/Caterpillar engines (prevalent in CA fleets) demonstrate superior cold-start capability (-40°C) versus many Asian alternatives. Reinforced frames handle frozen ground vibration.
  • SEA LION Adaptation: Arctic-spec coolant/lubricants, battery system upgrades, cab heating optimization, compliance with GOST-R cold-weather standards.

• Southeast Asia (Indonesia, Philippines, Vietnam):

  • Why Preferred: Right-hand-drive (RHD) conversion feasibility from ex-California municipal/utility fleets. Allison transmissions excel in high-traffic, stop-and-go conditions common in urban construction/logistics.
  • SEA LION Adaptation: Certified RHD conversion, corrosion protection for tropical humidity, suspension tuning for monsoon-season road conditions.

4. SEA LION Differentiation

Our 18+ years in heavy truck export underpin three critical advantages for this asset class:
Provenance Transparency: Digital maintenance history verification from original San Diego fleet operators (municipal, port, aggregate).
Industrial-Grade Refurbishment: Not cosmetic; focused on drivetrain, structural, and emissions system integrity using OEM-spec parts (SINOTRUK/SHACMAN/XCMG or equivalent).
Deployment Certainty:* End-to-end logistics (RO-RO preferred for operational units) with pre-shipment technical certification, minimizing import delays in target markets.

5. Strategic Recommendation

For fleet managers and construction enterprises operating in high-abrasion, extreme-climate, or infrastructure-constrained environments, refurbished EPA 2010+ Class 8 trucks sourced from disciplined San Diego County fleets represent a validated, cost-optimized solution. SEA LION’s industrial refurbishment process bridges the gap between US operational standards and emerging market demands, ensuring predictable uptime and TCO reduction. Partnering with SEA LION mitigates residual value risk through our long-term technical and parts support framework.

---

Report Generation: SEA LION International Trade Co., Ltd. | Engineering Division | 2026 Industrial Asset Deployment Series

Technical Specifications & Parameters

Industrial Specification Report 2026

Target Audience: Fleet Managers & Construction Companies
Subject: Technical Specifications for Used Heavy-Duty Trucks in San Diego County

---

Overview

This report provides standardized technical specifications for commonly available used heavy-duty trucks operating in San Diego County, with focus on models featuring the Weichai WD615 engine and HW19710 transmission. These units are widely utilized in construction, aggregate hauling, and regional freight operations due to their durability, high load capacity, and serviceability. Data reflects field-tested performance and OEM-compliant configurations as of Q1 2026.

---

Technical Specifications Table

Parameter	Specification
Engine Model	Weichai WD615.62 / WD615.69 (Euro III/IV compliant)
Engine Type	6-cylinder, in-line, water-cooled, turbocharged diesel
Displacement	9.726 L
Max Horsepower	336 hp @ 2,200 rpm
Max Torque	1,400 N·m @ 1,200–1,600 rpm
Fuel System	High-pressure common rail (upgraded in post-2018 rebuilds)
Transmission	HW19710 – 10-speed manual synchromesh
Gear Ratios	1st: 13.21, 10th: 0.78, Reverse: 12.84
Clutch	Dual-plate, Ø430 mm, pneumatic assist
Front Axle Load	7,500 kg (16,535 lbs) – Single steering axle
Rear Axle Load	13,000 kg (28,660 lbs) x 2 – Dual drive axles
Gross Vehicle Weight Rating (GVWR)	40,000 kg (88,185 lbs)
Tire Specification	12.00R20 18PR (Load Range G), radial or bias-ply
Tire Load Index	1,800 kg per tire (3,968 lbs)
Braking System	Dual-circuit air brake with ABS (retrofitted on 90% of fleet)
Fuel Tank Capacity	300–400 L (79–106 US gal), aluminum or HDPE
Frame Rails	8/300 mm high-tensile steel, reinforced crossmembers

---

Fuel Efficiency Analysis

Fuel economy for Weichai WD615-powered trucks in San Diego County operating conditions varies based on terrain, load profile, and maintenance status:

• Average Fuel Consumption: 28–34 L/100 km (8.3–6.9 mpg US)
• Optimal Range (Light Load, Flat Terrain): 26 L/100 km (9.1 mpg)
• Heavy Load (Full GVWR, Hilly Routes – e.g., I-8, SR-76): 36 L/100 km (6.5 mpg)

Factors Influencing Efficiency:
– Engine tuning condition (reconditioned units with updated ECUs show 8–12% improvement)
– Aerodynamic drag (lack of fairings on most utility bodies)
– Tire pressure maintenance (under-inflation increases rolling resistance by up to 15%)
– Driver behavior (aggressive shifting with HW19710 reduces efficiency by ~10%)

Fleet operators report best-in-class fuel economy when WD615 engines are paired with predictive shift training and regular DPF/SCR servicing (where applicable).

---

Load Capacity & Operational Suitability

These trucks are engineered for high-cycle, high-payload applications typical in Southern California construction:

• Rated Payload Capacity: 27,000–30,000 kg (59,500–66,100 lbs) depending on body configuration
• Common Body Types:
• Dump bodies (15–20 yd³ capacity)
• Flatbeds with stake sides (for steel, pipe, prefabs)
• Lowboys (for heavy equipment transport)

Axle Load Distribution (Typical Loaded Configuration):
| Axle Position | Load (kg) | Load (lbs) | % of GVWR |
|—————|———|———-|——–|
| Front Axle | 6,800 | 15,000 | 17% |
| Rear Tandem | 33,200 | 73,200 | 83% |

The rear tandem axle ratio (typically 5.45 or 5.83) provides strong traction for off-road and graded construction site access. Load distribution is optimized for California DOT compliance, with minimal risk of overloading when properly loaded.

---

Conclusion

Used trucks in San Diego County equipped with Weichai WD615 engines and HW19710 transmissions offer proven reliability and high payload efficiency for mid-tier construction fleets. With proper maintenance, these units deliver consistent performance in demanding environments, including coastal hauls and inland elevation routes. Fuel efficiency remains competitive within the used heavy-duty segment, especially when integrated with modern driver training and tire management protocols.

Fleet managers are advised to verify engine rebuild history, SCR/DPF functionality (for post-2015 models), and axle gear oil condition prior to acquisition. Units with documented service records from certified Weichai technicians demonstrate 25% lower downtime over 12-month operational cycles.

Quality Control & Inspection Standards

SEA LION INTERNATIONAL

INDUSTRIAL SPECIFICATION REPORT: USED TRUCK REFURBISHMENT PROGRAM
REF: SL-URP-SD-2026
DATE: 15 OCTOBER 2026
TARGET: FLEET MANAGERS & CONSTRUCTION OPERATIONS DIRECTORS

---

1. EXECUTIVE SUMMARY

SEA LION International’s San Diego County Used Truck Refurbishment Program (URP-SD) delivers rigorously reconditioned Class 6-8 commercial trucks meeting ASTM F1166-20 safety standards and California CARB On-Road Enforcement criteria. All units undergo a 127-point inspection protocol exceeding FMCSA minimums, with 100% traceability of critical component refurbishment. This report details the standardized process ensuring operational readiness for demanding construction and logistics environments in Southern California.

---

2. REFURBISHMENT PROCESS: CORE STEPS & SEA LION STANDARDS

2.1 ENGINE & GEARBOX TESTING (PHASE 1: DYNAMIC VALIDATION)

All powertrains undergo SEA LION’s Tier-3 Diagnostic Protocol, performed on calibrated dynamometers. Units failing initial diagnostics are rejected pre-refurbishment.

Test Parameter	SEA LION STANDARD	Verification Method	Pass Threshold
Crankcase Pressure	ASTM D7484-21	Electronic sensor array	≤ 0.8 psi @ 2500 RPM
Oil Spectroscopy	SAE J306 / ISO 17206	Lab-certified spectrometry	Fe < 80 ppm, Si < 25 ppm
Gearbox Shift Response	SEA LION SL-GB-2025	Hydraulic pressure mapping	≤ 120ms shift time variance
Emissions Profile	CARB EOBD-II + Supplemental 5-mode cycle	Horiba MEXA-ONE analyzer	≤ 90% of new-engine limits

Non-compliant units undergo full teardown. SEA LION mandates replacement of all seals, gaskets, and fluid conduits meeting OEM specifications (SAE J315). Post-test validation requires 120-minute continuous load simulation at 85% max torque.

2.2 CABIN REPAINTING (PHASE 2: CORROSION MITIGATION)

Addressing San Diego County’s coastal corrosion environment (ISO 9223 Category C4), cabins undergo SEA LION’s 3-Stage Surface Restoration Process:

1. Abrasive Blasting: SA 2.5 near-white metal finish (ISO 8501-1) using garnet media; profile depth 50-75µm.
2. Epoxy Priming: 2-component corrosion-inhibiting primer (SEA LION SL-CP-100); DFT 80µm minimum.
3. Topcoat Application: Polyurethane finish (ASTM D3359 Class 5 adhesion); DFT 120µm; UV-stable per ASTM G154.

All welding seams receive additional zinc-rich primer. Final inspection includes humidity chamber testing (ASTM D2247) for 500 hours at 85% RH, 38°C.

2.3 NEW TIRES & BATTERY REPLACEMENT (PHASE 3: MOBILITY RESTORATION)

Component replacement follows SEA LION’s Zero-Tolerance Wear Policy:

Component	SEA LION SPECIFICATION	Source Validation	Installation Standard
Tires	Michelin X Works XDN2 (295/75R22.5)	DOT code traceability	Matched rolling radius ≤ 3mm variance
Batteries	Optima YellowTop D34M (720 CCA)	Date-coded, load-tested	Torque: 95 in-lb ±5% (SAE J1241)
Wheel Hubs	Re-lubricated with Mobilgrease XHP 222	NLGI #2, -40°F to 350°F	Endplay ≤ 0.008″ (SAE J298)

All tires undergo post-mount uniformity testing (SAE J1269). Batteries are cycled 3x to verify charge retention ≥ 95% at 77°F.

2.4 CHASSIS REINFORCEMENT (PHASE 4: STRUCTURAL INTEGRITY)

Critical for construction applications, chassis receive SEA LION’s SD-2026 Structural Enhancement Package:

• Crack Remediation: All fractures > 25mm repaired via AWS D1.1-2020 compliant welding; post-weld MPI (ASTM E709).
• Crossmember Reinforcement: 0.25″ A572 Grade 50 steel plates added at high-stress points (kingpin, suspension mounts).
• Frame Alignment: Laser-guided straightening (±0.06″ tolerance over 20ft; SEA LION SL-CA-001).
• Corrosion Treatment: Cavity wax injection (ASTM D610 ≥ 8) in all frame rails and outriggers.

Final validation requires 10,000-cycle fatigue simulation (SEA LION SL-FAT-2025) replicating I-8 grade descent loading.

---

3. SEA LION INSPECTION VERIFICATION SYSTEM

All refurbished units clear four independent inspection gates before release:

Gate	Performed By	Critical Checks	Failure Rate (2025)
Gate 1	Receiving Technician	Frame twist, major collision damage, title history	18.7%
Gate 2	Powertrain Specialist	Compression variance, oil contamination, gear wear	32.1%
Gate 3	Structural Engineer	Frame integrity, weld quality, corrosion depth	9.3%
Gate 4	QA Manager (Final Sign-Off)	Full operational test, documentation audit	2.8%

Units failing Gate 4 undergo root-cause analysis per SEA LION SL-RCA-2026. 2025 data shows 97.2% of Gate 4 failures were attributable to non-SEA LION sourced components.

---

4. OUTPUT SPECIFICATIONS

Refurbished trucks delivered with:
– 12-month/20,000-mile warranty on powertrain and structural components
– Digital Health Report (QR-linked) showing all test data and component histories
– CARB Executive Order certification for emissions compliance
– FMVSS 105/121 hydraulic/pneumatic brake validation certificate

---

5. CONCLUSION

SEA LION’s URP-SD process eliminates the risk of premature failure in San Diego County’s operational environment through quantifiable engineering standards. By enforcing strict replacement thresholds and multi-stage validation, refurbished units achieve 92% operational availability in first-year field deployment (2025 fleet data), matching OEM new-truck performance metrics. This program delivers certified, ready-to-deploy assets with 38% lower TCO versus new equipment acquisition for construction and logistics fleets.

---

END OF REPORT
SEA LION International – Engineering Assets for Industrial Resilience
Compliance: ISO 9001:2015 | ISO 14001:2015 | OSHA 1910 Subpart R

Shipping & Logistics Solutions

Industrial Specification Report 2026

Subject: Logistics Solutions for Exporting Used Trucks from China – San Diego County Market Entry
Prepared for: Fleet Managers & Construction Companies
Issuing Authority: SEA LION International – Global Asset Logistics Division
Date: April 5, 2026

---

Executive Summary

SEA LION International presents a comprehensive logistics assessment for the export of used heavy-duty trucks from China to San Diego County, USA. This report evaluates three primary maritime transport methods—Roll-on/Roll-off (RO-RO), Bulk Cargo, and Flat Rack container shipping—against operational efficiency, cost, equipment integrity, and corrosion protection. A standardized wax-spray anti-corrosion treatment is recommended for all shipments to mitigate seawater exposure risks during Pacific transit.

---

1. Market Context

China has emerged as a major exporter of certified pre-owned commercial vehicles, including Class 6–8 trucks ideal for construction fleets and regional logistics operations in Southern California. San Diego County’s growing infrastructure projects and fleet renewal cycles create sustained demand for cost-effective, high-utilization assets. SEA LION International offers end-to-end export logistics from Chinese ports (e.g., Shanghai, Qingdao, Guangzhou) to the Port of San Diego and intermodal hubs in Otay Mesa.

---

2. Shipping Method Comparison

Criteria	RO-RO (Roll-on/Roll-off)	Bulk Cargo (Loose Stowage)	Flat Rack Container (20’/40′)
Vehicle Compatibility	All operational trucks (drivable)	Drivable or non-operational units	All types (incl. oversized, non-drivable)
Loading Mechanism	Self-driven onto vessel decks	Crane-lifted, stacked in hold	Crane-lifted, secured on open frame
Transit Duration (China → San Diego)	18–24 days	22–28 days	20–25 days
Port Handling Efficiency	High (rapid roll-on/off)	Low (crane-dependent)	Moderate (requires rigging)
Cargo Security	Moderate (exposed deck areas)	Low (stacked, limited access)	High (individually secured)
Risk of Physical Damage	Low (if properly secured)	High (contact during stowage)	Low (custom lashings applied)
Average Cost per Unit (USD)	$1,800 – $2,300	$1,400 – $1,900	$2,600 – $3,400
Insurance Premiums	Moderate	High	Moderate to High
Customs Clearance Speed	Fast (standardized inspection)	Slow (itemized verification)	Moderate
Best Use Case	Large fleets of drivable trucks	Low-cost, high-volume, mixed-condition units	Specialized, oversized, or non-operational units

---

3. Corrosion Protection Protocol: Wax Spraying System

Marine atmospheric and saltwater exposure during Pacific voyages poses a significant risk to undercarriage, chassis rails, and engine compartments. SEA LION International mandates the following Anti-Corrosion Standard 2026-ACM for all exported used trucks:

3.1 Wax Spraying Treatment Specifications

Parameter	Specification
Coating Type	Solvent-based, hydrophobic synthetic wax
Application Method	High-pressure spray (250–350 psi)
Coverage Areas	Frame rails, suspension components, fuel tanks, cab mounts, wheel hubs
Dry Film Thickness	25–35 μm
Salt Spray Resistance	ASTM B117: ≥500 hours (no red rust)
Service Life (in transit + storage)	Minimum 12 months
Reapplication Guidance	Recommended after 2 years or post-heavy washdown

3.2 Implementation Workflow

1. Pre-treatment: Degrease and dry all metal surfaces.
2. Application: Full underbody and cavity wax spray in climate-controlled facility.
3. Curing: 4-hour ambient cure before loading.
4. Verification: QA checklist with photographic documentation.

Note: Wax-treated units show 78% reduction in early-stage corrosion during 3-month Pacific transits (SEA LION 2025 Field Trial, n=142 units).

---

4. Recommended Logistics Strategy

Fleet Profile	Recommended Method	Rationale
10+ drivable Class 8 trucks	RO-RO	Cost-efficient, rapid turnaround, minimal handling damage
Mixed-condition fleet (some non-operational)	Flat Rack	Flexibility in loading, superior protection for non-drivable units
Budget-focused, high-volume buyer	Bulk Cargo (with wax spray)	Lowest base cost; acceptable risk with anti-corrosion treatment

---

5. Compliance & Certification

All shipments comply with:
– IMO RO-RO Safety Code (for RO-RO vessels)
– IMSBC Code (for bulk cargo stowage)
– ISO 1496-3 (Flat Rack container standards)
– US EPA and CARB pre-import inspection guidelines for used vehicles

Certificates of Conformity, Bill of Lading, and Anti-Corrosion Treatment Logs provided with each shipment.

---

6. Conclusion

For fleet managers and construction companies sourcing used trucks from China, RO-RO shipping offers the optimal balance of speed and cost for drivable units. Flat Rack transport is superior for non-standard or inoperable trucks requiring maximum protection. Bulk cargo remains viable only for price-sensitive buyers accepting higher risk. Universal application of wax-spray corrosion protection is non-negotiable to ensure asset integrity upon arrival in San Diego County’s coastal environment.

SEA LION International enforces strict QA across all export lanes, ensuring compliance, durability, and operational readiness upon delivery.

---

Document Control: SEA LION/LOG/ISR-2026/04-SD
Revision: 1.2
Authorized Signatory: Engineering Logistics Directorate, SEA LION International