The Nissan TB48DE is a 4,757 cc, inline‑six naturally aspirated petrol engine produced between 2002 and 2007. It features a cast iron block, aluminum head, dual overhead camshafts (DOHC), and electronic fuel injection with variable valve timing. This robust design prioritized low-end torque and off-road durability for the Patrol, delivering outputs of 170 kW (231 PS) and 410 Nm.
Fitted exclusively to the Nissan Patrol (Y61 series) GU facelift models, the TB48DE was engineered for heavy towing, remote-area reliability, and sustained low-speed crawling. Emissions compliance for its era was managed through basic engine management and exhaust systems, meeting Euro 3 standards.
One documented concern is premature failure of the variable valve timing (VVT) solenoid, highlighted in Nissan Service Bulletin NTB‑TB48‑001. This issue, often linked to oil contamination or age, can trigger check engine lights and reduced performance due to incorrect cam phasing.
Nissan
Production years 2002–2007 meet Euro 3 emissions standards for their respective model years and markets (VCA UK Type Approval data for relevant chassis codes).
The Nissan TB48DE is a 4,757 cc inline‑six naturally aspirated petrol engine engineered for full-size SUVs (2002-2007). It combines a robust DOHC valvetrain with variable valve timing to deliver strong, linear torque for off-road and towing applications. Designed to meet Euro 3 emissions standards, it prioritizes mechanical durability and serviceability in harsh conditions.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,757 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑6, DOHC, 24‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 95.5 mm × 111.0 mm | |
| Power output | 170 kW (231 PS) | |
| Torque | 410 Nm @ 3,200 rpm | |
| Fuel system | Electronic Fuel Injection (Multi-point) | |
| Emissions standard | Euro 3 | |
| Compression ratio | 9.0:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain‑driven | |
| Oil type | SAE 10W‑40 (Mineral/Semi‑Synthetic) | |
| Dry weight | 245 kg |
The inline-six layout provides inherent smoothness and torque ideal for off-roading but requires regular oil changes (every 10,000 km) with quality 10W-40 oil to prevent timing chain and VVT solenoid wear. The non-interference design provides a safety margin if the chain fails. Valve clearances are hydraulic and self-adjusting. The VVT system is sensitive to oil quality; using the correct specification and changing it promptly is critical per Nissan SIB NTB-TB48-001 to prevent solenoid clogging and performance loss.
Oil Specs: Requires SAE 10W-40 specification (Nissan ESM Y61 Patrol). API SG/CD or equivalent recommended.
Emissions: Euro 3 certification applies to all models (VCA Type Approval Database for chassis Y61).
Power Ratings: Measured under JIS D 1001 standards. Output is consistent across all applications (Nissan ESM Y61 Patrol).
Nissan Electronic Service Manual (ESM): Y61 Patrol
VCA Type Approval Database (Search by Chassis Code)
JIS D 1001 Engine Power Measurement Standards
The Nissan TB48DE was used exclusively in Nissan's Y61 platform with longitudinal mounting. This engine was fitted only to the Patrol GU facelift and received no major platform-specific adaptations. All technical specifications are consistent across its production run.
Locate the engine code stamped on the flat machined surface on the left side of the cylinder block, near the rear of the engine (Nissan ESM Y61). The code will read "TB48DE". Visual identification: Features a long, straight six-cylinder layout with dual cam covers and a prominent intake manifold. Critical differentiation from TB45: TB45 is a 4.5L engine with a smaller bore; the engine code is the definitive identifier. Critical differentiation from TD42: TD42 is a diesel engine. Service parts for the cylinder head and valvetrain are specific to the TB48DE variant.
The TB48DE's primary reliability risk is variable valve timing (VVT) solenoid failure, with elevated incidence in high-mileage or poorly maintained examples. Nissan service data indicates this is a common cause for check engine light visits, while UK DVSA records show no systemic mechanical failures. Using the correct oil and adhering to change intervals per NTB-TB48-001 make preventative maintenance critical.
Analysis derived from Nissan technical bulletins (2002-2007) and UK DVSA failure statistics (2005-2010). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN TB48DE.
Comprehensive technical documentation and regulatory references
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EU emissions and type-approval regulations (e.g., CELEX:32007R0715, CELEX:32017R1151).
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DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
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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.
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