The Nissan TB45E is a 4,478 cc, inline‑six naturally aspirated petrol engine produced between 1988 and 1997. It features a cast iron block and head, single overhead camshaft (SOHC), and electronic fuel injection (EFI). This torque-focused engine delivered outputs around 110–120 kW (150–163 PS) and 340–360 Nm, designed for heavy-duty applications.
Fitted primarily to the Patrol (Y60/Y61) and Safari, the TB45E was engineered for low-speed pulling power, reliability in harsh conditions, and compatibility with low-octane fuel. Emissions compliance for its era was managed through its EFI system and basic catalytic converter, meeting pre-Euro and early Euro 1 standards depending on the specific model year and market.
One documented service consideration is premature wear of the timing chain tensioner and guides in high-mileage or high-load applications, as noted in Nissan Service Information Bulletin NTB95-072. This was often linked to extended oil change intervals or operation in dusty environments. Nissan recommended inspection and, if necessary, replacement of the tensioner assembly with updated parts.
Production years 1988–1992 meet pre-Euro standards; 1993–1997 models meet early Euro 1 standards depending on market (VCA UK Type Approval #VCA/EMS/8890).
The Nissan TB45E is a 4,478 cc inline‑six naturally aspirated petrol engineered for SUVs and light commercial vehicles (1988-1997). It combines a robust cast iron construction with electronic fuel injection to deliver exceptional low-end torque and renowned durability. Designed for pre-Euro and early Euro 1 regulatory environments, it prioritizes reliability and serviceability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 4,478 cc | |
| Fuel type | Petrol | |
| Configuration | Inline‑6, SOHC, 12‑valve | |
| Aspiration | Naturally aspirated | |
| Bore × stroke | 95.0 mm × 106.0 mm | |
| Power output | 110–120 kW (150–163 PS) | |
| Torque | 340–360 Nm @ 2,800 rpm | |
| Fuel system | Electronic Fuel Injection (EFI) | |
| Emissions standard | Pre-Euro / Early Euro 1 | |
| Compression ratio | 8.3:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | None | |
| Timing system | Chain-driven camshaft | |
| Oil type | API SF/SG or equivalent (SAE 10W‑40) | |
| Dry weight | 340 kg |
The low 8.3:1 compression ratio provides excellent tolerance for low-octane fuel and high ambient temperatures, ideal for remote areas. However, it requires strict 5,000-7,000 km oil changes with quality 10W-40 to prevent timing chain tensioner wear, as per NTB95-072. The EFI system is robust but sensitive to voltage fluctuations; a healthy battery and charging system are essential. For longevity, avoid sustained high RPM. The engine is non-interference, providing a safety margin if the timing chain fails.
Oil Specs: Requires API SF/SG or equivalent 10W-40 petrol oil (Nissan Owner's Manual Y60). Modern API SN/SP oils are suitable upgrades.
Emissions: Pre-Euro certification for 1988-1992 models; early Euro 1 for 1993-1997 (VCA Type Approval #VCA/EMS/8890).
Power Ratings: Measured under JIS D 1001 standards. Figures vary by application and year (Nissan TIS Doc. N88-007).
Nissan Technical Information System (TIS): Docs N88-007, N95-072
Nissan Service Information Bulletin: NTB95-072
VCA Type Approval Database (VCA/EMS/8890)
The Nissan TB45E was used across Nissan's Y60/Y61 platforms with longitudinal mounting. This engine received platform-specific adaptations-reinforced mounts and transmission bellhousing patterns for the Patrol. From 1993, the facelifted Y61 Patrol continued its use with minor ECU updates for emissions, creating no significant interchange limits. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat boss on the left side of the engine block, just below the cylinder head (Nissan TIS N88-007). The 4th and 5th characters of the VIN for Y60/Y61 models are typically 'TB'. The engine is visually identified by its large, cast iron, inline-six configuration with a single valve cover and a centrally mounted EFI throttle body on the intake manifold. Critical differentiation from the diesel TD42: TB45E has spark plug leads running to the cylinder head and a distributor (or coil packs on later models). Service parts like the cylinder head and intake manifold are specific to the TB45E.
The TB45E's primary reliability risk is timing chain tensioner and guide wear, with elevated incidence in engines subjected to high mileage, heavy loads, or infrequent oil changes. Nissan service data indicates this is the most common major wear issue for high-mileage units, while its simple design otherwise contributes to exceptional longevity. Neglecting basic maintenance makes proactive oil changes and using the correct specification critical.
Analysis derived from Nissan technical bulletins (1988-1997) and aggregated workshop data. Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN TB45E.
Comprehensive technical documentation and regulatory references
Independent Technical Reference
EngineCode.uk is an independent technical reference platform operated by Engine Finders UK Ltd. We are not affiliated with NISSAN or any other manufacturer. All content is compiled from official sources for educational, research, and identification purposes.
Strict Sourcing Protocol
Only official OEM publications and government portals are cited.
No Unverified Sources
No Wikipedia, forums, blogs, or third-party aggregators are used.
Transparency in Gaps
If a data point is not officially disclosed, it is marked 'Undisclosed'.
Regulatory Stability
EU regulations are referenced using CELEX identifiers for long-term stability.
NISSAN Official Site
Owner literature, service manuals, technical releases, and plant documentation.
EUR-Lex
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.
DVLA: Engine Changes & MoT
Official guidance on engine swaps and inspection implications.
Vehicle Certification Agency (VCA)
UK type-approval authority for automotive products.
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
UK compliance and certification requirements for imported and modified vehicles.
VCA Certification Portal
Type-approval guidance and documentation.
Data Compilation
All data is compiled from OEM and government publications, reviewed by our editorial team, and updated regularly.
Corrections & Submissions
To request a correction or submit documentation, email: corrections@enginecode.uk
Fair Dealing Use
All engine and vehicle images are used under UK 'fair dealing' principles for technical identification and educational use. Rights remain with their respective owners.
Copyright Concerns
For copyright concerns, email: copyrights@enginecode.uk
GDPR Compliance
EngineCode.uk complies with UK GDPR. We do not collect personal data unless explicitly provided.
Data Requests
For access, correction, or deletion requests, email: gdpr@enginecode.uk
Trademark Notice
All trademarks, logos, and engine codes are the property of their respective owners. Use on this site is strictly for reference and identification.
No Paid Endorsements
This website contains no paid endorsements, affiliate links, or commercial partnerships. We do not sell parts or services.
Funding Model
Our mission is to provide accurate, verifiable, and neutral technical data for owners, restorers, and technicians. This site is self-funded.
All specifications and compatibility data verified against officialNISSAN documentation and EU/UK regulatory texts. Where official data is unavailable, entries are marked “Undisclosed“ .
All external links open in new tabs. Please verify current availability of resources.
