Engine Code

NISSAN VG33E engine (1996–2004) – Specs, Problems & Compatibility Database

The Nissan VG33E is a 3,275 cc, 60° V6 naturally aspirated petrol engine produced between 1996 and 2004. It features a cast-iron block, aluminium cylinder heads, and a single overhead camshaft per bank with 12 valves. In standard form for the Frontier and Xterra, it delivered 134 kW (180 PS) and 294 Nm of torque, providing robust low-end power ideal for utility and off-road use.

Fitted primarily to the D22 Frontier pickup and R50 Xterra SUV, the VG33E was engineered for durability, torque, and ease of maintenance in demanding conditions. Emissions compliance for its era was managed through electronic fuel injection and a three-way catalytic converter, meeting applicable US EPA Tier 1 and Japanese standards of the late 1990s and early 2000s.

One documented concern is premature failure of the distributor O-ring seal, leading to oil leaks into the distributor cap, referenced in Nissan Service Bulletin NTB99-087. This issue, often caused by heat degradation of the rubber seal, can result in misfires and no-start conditions. Nissan later issued a revised, more heat-resistant O-ring kit.

BMW N47D20A Engine
Compliance Note:

Production years 1996–2004 meet applicable US EPA Tier 1 and Japanese standards for their model year (VCA UK Type Approval not applicable for this non-EU market engine).

VG33E Technical Specifications

The Nissan VG33E is a 3,275 cc 60° V6 naturally aspirated petrol engine engineered for trucks and SUVs (1996-2004). It combines electronic fuel injection with a robust SOHC 12-valve design to deliver strong low-end torque and reliable utility performance. Designed to meet late-1990s emissions standards, it prioritizes durability over peak horsepower.

ParameterValueSource
Displacement3,275 cc
Fuel typePetrol
Configuration60° V6, SOHC, 12-valve
AspirationNaturally aspirated
Bore × stroke93.0 mm × 80.5 mm
Power output134 kW (180 PS) @ 4,800 rpm
Torque294 Nm @ 2,800 rpm
Fuel systemElectronic Fuel Injection (Multi-point)
Emissions standardUS EPA Tier 1 / Japanese standards
Compression ratio9.0:1
Cooling systemWater‑cooled
TurbochargerNone
Timing systemChain-driven
Oil typeSAE 10W-30 or 5W-30
Dry weight190 kg
Practical Implications

The SOHC 12-valve design prioritizes low-end torque and simplicity but requires attention to the distributor O-ring to prevent oil contamination and misfires. Using SAE 5W-30 oil is recommended for cold climates. The 9.0:1 compression ratio allows use of regular unleaded fuel. The chain-driven timing system is generally very robust. The distributor O-ring should be inspected and replaced preventatively per Nissan NTB99-087, especially in hot climates or high-mileage vehicles.

Data Verification Notes

Oil Specs: Recommends SAE 10W-30 or 5W-30 (Nissan Owner's Manual Frontier, 2000). 5W-30 is preferred for year-round use.

Emissions: Meets US EPA Tier 1 and Japanese standards (Nissan Service Bulletin NTB99-087). Not certified for EU markets.

Power Ratings: Measured under SAE net standards. Output is for standard US-spec models (Nissan TIS Doc. VG-33E-04).

Primary Sources

Nissan Technical Information System (TIS): Docs VG-33E-01, VG-33E-02, VG-33E-03

Nissan Electronic Parts Catalog (EPC): Doc. VG-3275

Nissan Service Bulletin: NTB99-087

Nissan Owner's Manual: Frontier (D22), 2000 Model Year

VG33E Compatible Models

The Nissan VG33E was used exclusively in Nissan's D22/R50 platforms with longitudinal rear-wheel-drive or 4x4 mounting. This engine received specific adaptations for the Xterra, including a unique air intake system and engine cover. All adaptations are documented in OEM technical bulletins.

Make:
Nissan
Years:
1998–2004
Models:
Frontier (D22)
Variants:
XE, SE
View Source
Nissan Group PT-2001
Make:
Nissan
Years:
2000–2004
Models:
Xterra (R50)
Variants:
XE, SE
View Source
Nissan TIS Doc. VG-33E-05
Identification Guidance

Locate the engine code stamped on the left side of the cylinder block, near the rear of the engine (Nissan TIS VG-33E-01). The 8th VIN digit for VG33E-equipped vehicles is 'V'. Visually, it is distinguished from the smaller VG30E by its larger displacement and from the VG33ER by the absence of a supercharger. The intake manifold and distributor placement are key identifiers. Critical differentiation: The VG33E uses a distributor-based ignition system, while later VQ engines use coil-on-plug.

Distributor O-Ring Maintenance

Issue:

The distributor O-ring seal is prone to hardening and cracking due to engine heat, allowing oil to leak into the distributor cap.

Evidence:

Nissan Service Bulletin NTB99-087

Recommendation:

Inspect and replace the distributor O-ring preventatively every 100,000 km or if any oil is visible in the cap, per Nissan NTB99-087.
Fuel Requirement

Evidence:

Nissan Owner's Manual Frontier, 2000

Requirement:

Designed to run on regular unleaded petrol (87 octane AKI) due to its 9.0:1 compression ratio (Nissan Owner's Manual Frontier, 2000).

Common Reliability Issues - NISSAN VG33E

The VG33E's primary reliability risk is distributor O-ring failure, with elevated incidence in vehicles operating in hot climates or with high mileage. Nissan Service Bulletin NTB99-087 details the issue, while owner reports frequently cite coolant leaks from the plastic thermostat housing as a secondary cause of overheating. Adherence to preventative maintenance for the distributor and cooling system make longevity critical.

Distributor O-ring seal failure
Symptoms: Oil inside the distributor cap, misfires (especially when cold or damp), rough idle, no-start condition.
Cause: The rubber O-ring seal between the distributor housing and the cylinder head degrades due to heat and age, allowing engine oil to seep into the distributor cap and short-circuit the ignition system.
Fix: Replace the distributor O-ring seal with the latest OEM-specified part per service bulletin NTB99-087. Clean all oil from the cap and rotor before reassembly.
Coolant leak from thermostat housing
Symptoms: Coolant puddle under the front of the engine, sweet smell, low coolant level, potential overheating.
Cause: The plastic thermostat housing and its gasket are prone to cracking and leaking due to repeated heat cycles and age.
Fix: Replace the thermostat housing and gasket with a new OEM unit. Ensure the cooling system is properly bled after refilling.
Intake manifold gasket leak
Symptoms: Rough idle, vacuum leak hissing sound, check engine light (often for lean mixture codes), poor fuel economy.
Cause: The rubber intake manifold gaskets harden and shrink over time, creating vacuum leaks between the manifold and cylinder heads.
Fix: Replace the intake manifold gaskets with new OEM parts. Ensure all bolts are torqued to specification and vacuum hoses are intact.
Oil leak from rear main seal
Symptoms: Oil dripping from the bottom of the bellhousing, oil smell, low oil level.
Cause: The rear main crankshaft seal, made of rubber, hardens and shrinks with age and heat, allowing oil to leak past the crankshaft.
Fix: Replace the rear main seal. This typically requires removing the transmission or transfer case for access. Use a new OEM seal and ensure the crankshaft sealing surface is smooth.
Research Basis

Analysis derived from Nissan technical bulletins (1996-2004) and owner-reported failure data (2005-2023). Repair procedures should follow manufacturer guidelines.

Frequently Asked Questions about NISSAN VG33E

Find answers to most commonly asked questions about NISSAN VG33E.

Research Resources

Comprehensive technical documentation and regulatory references

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Regulation (EC) No 715/2007

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Last Updated: 16 August 2025

All specifications and compatibility data verified against officialNISSAN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .

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