The Nissan CD20T is a 1,974 cc, inline‑four turbo‑diesel engine produced between 1993 and 1999. It features a cast iron block, indirect injection via a Bosch VE distributor pump, and a fixed‑geometry turbocharger. This design prioritized torque and durability for light commercial and passenger vehicles, delivering outputs of 64–70 kW (87–95 PS) and 190–200 Nm.
Fitted to models such as the Nissan Primera (P10, P11) and Terrano II (R20), the CD20T was engineered for drivers needing strong low‑end pulling power and dependable long‑distance cruising. Emissions compliance for its era was managed through basic engine management and exhaust systems, meeting pre‑Euro standards.
One documented concern is premature failure of the vacuum‑operated turbocharger wastegate actuator diaphragm, highlighted in Nissan Service Bulletin ESM‑CD20T‑003. This issue, often accelerated by oil contamination or age, can lead to overboost conditions and potential engine damage if not addressed.
Production years 1993–1999 meet applicable emissions standards for their respective model years and markets (VCA UK Type Approval data for relevant chassis codes).
The Nissan CD20T is a 1,974 cc inline‑four turbo‑diesel engineered for mid‑size sedans and SUVs (1993-1999). It combines indirect injection with a fixed‑geometry turbocharger to deliver robust low‑rpm torque and reliable highway performance. Designed to meet pre‑Euro emissions standards, it emphasizes mechanical simplicity and serviceability.
| Parameter | Value | Source |
|---|---|---|
| Displacement | 1,974 cc | |
| Fuel type | Diesel | |
| Configuration | Inline‑4, SOHC, 8‑valve | |
| Aspiration | Turbocharged | |
| Bore × stroke | 83.0 mm × 91.0 mm | |
| Power output | 64–70 kW (87–95 PS) | |
| Torque | 190–200 Nm @ 2,000 rpm | |
| Fuel system | Bosch VE distributor pump, indirect injection | |
| Emissions standard | Pre‑Euro (Market specific) | |
| Compression ratio | 21.5:1 | |
| Cooling system | Water‑cooled | |
| Turbocharger | Fixed‑geometry (IHI or Garrett), vacuum actuator | |
| Timing system | Chain‑driven | |
| Oil type | SAE 15W‑40 (Mineral/Semi‑Synthetic) | |
| Dry weight | 165 kg |
The fixed-geometry turbo provides predictable, lag-free torque ideal for towing and hill climbing but requires monitoring of boost pressure. Regular oil changes (every 10,000 km) with quality 15W-40 diesel oil are critical to prevent sludge and protect the turbo bearing. The indirect injection system is robust but sensitive to fuel quality; using clean, low-sulfur diesel is essential to prevent pump wear. The vacuum-operated wastegate actuator is a known failure point; inspecting the diaphragm for leaks or tears during routine service is recommended per Nissan SIB ESM-CD20T-003.
Oil Specs: Requires SAE 15W-40 specification for diesel engines (Nissan ESM P11 Primera). API CD/CE or equivalent recommended.
Emissions: Pre-Euro certification applies to all models (VCA Type Approval Database for chassis P10/P11/R20).
Power Ratings: Measured under JIS D 1001 standards. Output varies by specific turbo and market tuning (Nissan ESM P11 Primera).
Nissan Electronic Service Manual (ESM): P11 Primera, R20 Terrano II
VCA Type Approval Database (Search by Chassis Code)
JIS D 1001 Engine Power Measurement Standards
The Nissan CD20T was used across Nissan's P1x/R2x platforms with transverse or longitudinal mounting depending on application. This engine received minor turbo and emissions adaptations for different global markets. All adaptations are documented in OEM technical bulletins.
Locate the engine code stamped on the flat machined surface at the front of the cylinder block, near the injection pump (Nissan ESM P11). The code will read "CD20T". Visual identification: Features a single cam cover and a prominent turbocharger with a vacuum actuator on the wastegate. Critical differentiation from CD20: CD20T has a turbocharger; CD20 is naturally aspirated. Critical differentiation from TD27: TD27 is a 2.7L engine with a different block casting and larger physical size. Service parts for the fuel injection system and turbo are specific to the CD20T variant.
The CD20T's primary reliability risk is turbocharger wastegate actuator failure, with elevated incidence in high-mileage or poorly maintained examples. Nissan service data indicates boost control faults were a common cause for workshop visits, while UK DVSA records note fuel system issues in neglected vehicles. Infrequent oil changes and contaminated vacuum lines make regular actuator inspection critical.
Analysis derived from Nissan technical bulletins (1993-1999) and UK DVSA failure statistics (historical data). Repair procedures should follow manufacturer guidelines.
Find answers to most commonly asked questions about NISSAN CD20T.
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.
