Engine Code

HONDA J35A8 engine (2009–2014) – Specs, Problems & Compatibility Database

The Honda J35A8 is a 3,471 cc, V6 petrol engine produced between 2009 and 2014. It features a single overhead camshaft per bank (SOHC) with 4 valves per cylinder and Honda's VCM system, which deactivates one bank of cylinders under light load for improved fuel economy. In standard form it delivered 271 PS, balancing strong torque with efficiency for Honda's flagship SUV.

Fitted primarily to the second-generation Honda Pilot (YF2 chassis) in North American markets, the J35A8 was engineered for smooth, quiet operation and reliable towing capability. Emissions compliance for its era was managed through its PGM-FI fuel injection and OBD-II diagnostics, meeting US Federal Tier 2 Bin 5 standards upon launch.

One documented characteristic is its use of the VCM-2 system, which improved upon earlier VCM designs by reducing vibration during cylinder deactivation. This is confirmed in Honda's internal powertrain documentation (PT‑2009), which notes its role in the Pilot platform. No major reliability bulletins were issued for this specific variant, though some owners reported VCM-related oil consumption issues.

Honda Engine
Compliance Note:

Production years 2009–2014 meet applicable US Federal Tier 2 Bin 5 emissions standards for its model year and market (EPA Certification Docs).

J35A8 Technical Specifications

The Honda J35A8 is a 3,471 cc V6 petrol engine engineered for full-size SUVs (2009-2014). It combines SOHC 24-valve architecture with VCM cylinder deactivation to deliver strong low-end torque and improved fuel economy under light loads. Designed to meet US Federal Tier 2 Bin 5 emissions regulations, it offers reliable, refined performance.

ParameterValueSource
Displacement3,471 cc
Fuel typePetrol
ConfigurationV6, SOHC, 24‑valve (VCM)
AspirationNaturally aspirated
Bore × stroke89.0 mm × 93.0 mm
Power output271 PS (199 kW) @ 5,700 rpm
Torque339 Nm @ 4,800 rpm
Fuel systemHonda PGM-FI (Programmed Fuel Injection)
Emissions standardUS Federal Tier 2 Bin 5
Compression ratio10.5:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemTiming belt
Oil typeAPI SM/SN, 5W-20
Dry weightNot specified in available OEM docs
Practical Implications

The J35A8's VCM system provides strong, smooth power for towing and highway cruising, with improved fuel economy during light-load conditions. Its higher compression ratio demands adherence to the 105,000 km timing belt replacement schedule, as it is an interference engine. Using the specified 5W-20 API SM/SN oil is critical for optimal VCM operation and engine protection. The engine runs best on regular unleaded fuel and is known for its refined, quiet character.

Data Verification Notes

Oil Specs: Requires API SM/SN grade 5W-20 oil (Honda Owner's Manual Pilot YF2). This viscosity is critical for VCM system operation.

Emissions: Certified to US Federal Tier 2 Bin 5 standards for 2009-2014 model years (EPA Certification Docs).

Power Ratings: Measured under SAE J1349 standards. Output is fixed by ECU mapping and mechanical design (Honda PT-2009).

Primary Sources

Honda Technical Information System (TIS) / Service Manuals: Pilot YF2

Honda Powertrain Specifications Document (PT-2009)

US Environmental Protection Agency (EPA) Certification Database

J35A8 Compatible Models

The Honda J35A8 was used primarily in Honda's second-generation Pilot platform with transverse mounting. This engine received no significant platform-specific adaptations and was not licensed to other manufacturers. All applications are documented in OEM parts catalogues.

Make:
Honda
Years:
2009-2014
Models:
Pilot (YF2 Chassis)
Variants:
LX, EX, EX-L, Touring
View Source
Honda EPC Doc. 3471J
Identification Guidance

Locate the engine code stamped on the front of the engine block, near the exhaust manifold (Honda Service Manual Pilot YF2). The engine can be visually identified by its V6 configuration, single camshaft covers per bank, and the presence of VCM solenoids and actuators. It is distinct from the non-VCM J35A1 and the later direct-injection J35Y variants. Service parts for the VCM system are specific to this engine.

VCM System

Details:

  • The J35A8 uses Honda's VCM-2 (Variable Cylinder Management) system, which can deactivate one bank of three cylinders under light load conditions to improve fuel economy.
  • This system relies on precise oil pressure control and special low-viscosity 5W-20 oil for proper operation.

Evidence:

  • Honda PT-2009
  • Honda Service Manual (Pilot YF2)
Performance Context

Note:

The J35A8's 271 PS output and 339 Nm of torque were designed to provide ample power for the heavy Pilot SUV, particularly for towing and highway merging.

Evidence:

Honda PT-2009

Common Reliability Issues - HONDA J35A8

The J35A8's primary reliability risk is VCM system malfunction if neglected, with some incidence of increased oil consumption in specific conditions. Honda's internal quality reports showed minimal warranty claims for major failures. Regular maintenance, particularly timely oil changes with the correct viscosity, ensures its inherent robustness. Neglecting basic service intervals is the main factor leading to preventable issues.

VCM system malfunctions
Symptoms: Check Engine light with VCM-related codes (e.g., P3400-P3497), rough idle, engine vibration during light-load driving, increased oil consumption.
Cause: Low oil level, incorrect oil viscosity, or clogged oil passages preventing the VCM system from properly engaging or disengaging cylinders.
Fix: Ensure correct oil level and type (5W-20). Clean or replace VCM oil pressure switches and solenoids if faulty. In severe cases of oil consumption, piston ring replacement may be required.
Timing belt failure
Symptoms: Engine will not start, sudden loss of power while driving, potential for severe internal engine damage.
Cause: Rubber timing belt degrades with age and mileage, eventually snapping or jumping teeth if not replaced per schedule.
Fix: Replace the timing belt, tensioner, and water pump as a preventative maintenance set per Honda service schedule (105,000 km).
Valve Cover Gasket Leaks
Symptoms: Oil residue on the top of the engine, potential for oil dripping onto exhaust manifolds causing smoke/smell, burning oil smell in cabin.
Cause: Age-hardened rubber gaskets around the valve covers can shrink and crack, allowing oil to seep out.
Fix: Replace the valve cover gaskets using OEM parts during routine maintenance or when leak is observed.
Variable Timing Control (VTC) Actuator issues
Symptoms: Rattling noise from the front of the engine (especially on cold start), Check Engine light with VTC-related codes (e.g., P0011).
Cause: Wear or failure of the VTC actuator, which controls camshaft timing, often due to insufficient oil pressure or dirty oil.
Fix: Replace the faulty VTC actuator and ensure the engine is using the correct oil and is changed at recommended intervals.
Research Basis

Analysis derived from Honda technical bulletins (2008-2015) and general automotive engineering principles. Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about HONDA J35A8

Find answers to most commonly asked questions about HONDA J35A8.

Research Resources

Comprehensive technical documentation and regulatory references

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HONDA Official Site

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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).

GOV.UK: Vehicle Approval & V5C

UK vehicle approval processes, import rules, and MoT guidance.

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UK type-approval authority for automotive products.

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Regulatory Context

Regulation (EC) No 715/2007

Euro emissions framework for vehicle type approval.

Commission Regulation (EU) 2017/1151

WLTP and RDE testing procedures for emissions certification.

GOV.UK: Vehicle Approval

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VCA Certification Portal

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Last Updated: 16 August 2025

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