Covers Cadillac petrol, hybrid, and electric powertrains used across UK and European models - from early OHV V8s to modern High Feature V6, EcoTec turbo, and Ultium-based electric drive units. Each engine code includes specifications, compatible vehicles, and emissions data, sourced from official GM, Cadillac and EU records.
Data sourced from GM Service Information, Cadillac TIS, VCA Type Approval Database, and EU Regulation (EC) No 715/2007.
Find Cadillac engine codes by series, model, or generation
| Engine Code | Fuel Type | Series | Specifications |
|---|---|---|---|
| Petrol | B-Series | View Specs | |
| Petrol | B-Series | View Specs | |
| Petrol | B-Series | View Specs | |
| Petrol | B-Series | View Specs | |
| Petrol | CE-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | L-Series | View Specs | |
| Petrol | LA-Series | View Specs | |
| Petrol | LAP-Series | View Specs | |
| Petrol | LC-Series | View Specs | |
| Petrol | LD-Series | View Specs | |
| Petrol | LF-Series | View Specs | |
| Petrol | LF-Series | View Specs | |
| Petrol | LF-Series | View Specs | |
| Petrol | LF-Series | View Specs | |
| Petrol | LFX-Series | View Specs | |
| Petrol | LGU-Series | View Specs | |
| Petrol | LGW-Series | View Specs | |
| Petrol | LGX-Series | View Specs | |
| Petrol | LH-Series | View Specs | |
| Petrol | LHX-Series | View Specs | |
| Petrol | LK-Series | View Specs | |
| Petrol | LLT-Series | View Specs | |
| Petrol | LLV-Series | View Specs | |
| Petrol | LMG-Series | View Specs | |
| Petrol | LNF-Series | View Specs | |
| Petrol | LP-Series | View Specs | |
| Petrol | LQR-Series | View Specs | |
| Petrol | LRR-Series | View Specs | |
| Petrol | LS-Series | View Specs | |
| Petrol | LS-Series | View Specs | |
| Petrol | LSA-Series | View Specs | |
| Petrol | LSA-Series | View Specs | |
| Petrol | LT-Series | View Specs | |
| Petrol | LT-Series | View Specs | |
| Petrol | LT-Series | View Specs | |
| Petrol | LT-Series | View Specs | |
| Petrol | LT-Series | View Specs | |
| Petrol | LTA-Series | View Specs | |
| Petrol | LTG-Series | View Specs | |
| Petrol | LTG-Series | View Specs | |
| Petrol | LWR-Series | View Specs | |
| Petrol | LX-Series | View Specs | |
| Petrol | LXG-Series | View Specs | |
| Petrol | LY-Series | View Specs | |
| Petrol | LY-Series | View Specs | |
| Petrol | LZ-Series | View Specs | |
| Petrol | LZ-Series | View Specs | |
| Petrol | LZ-Series | View Specs | |
| Petrol | NORTHSTAR-Series | View Specs | |
| Petrol | NORTHSTAR-Series | View Specs | |
| Petrol | NORTHSTAR-Series | View Specs | |
| Petrol | V-Series | View Specs | |
| Petrol | V-Series | View Specs | |
| Petrol | V-Series | View Specs | |
| Diesel | Z-Series | View Specs | |
| Diesel | Z-Series | View Specs | |
| Petrol | Z-Series | View Specs | |
| Petrol | Z-Series | View Specs | |
| Petrol | Z-Series | View Specs |
See where Cadillac/GM power drives other leading brands.
Explore Cadillac's electrified powertrain technologies.
Engine specifications and technical data sourced from GM Technical Documentation, Cadillac TIS, and VCA Type Approval Database. Consult vehicle documentation or professional guidance before undertaking mechanical work. Report errors or omissions through our contact channels.
Engine Finders UK Ltd, which operates EngineCode.uk, can pass your enquiry to engine suppliers in the UK. The service is for vehicles in the United Kingdom, with UK delivery or fitting. This is a commercially connected service, and sending an enquiry does not confirm diagnosis or compatibility.
The engine code is essential for ordering parts, diagnosing issues, and verifying compatibility. It is not the same as the VIN or chassis number. This guide shows exactly where to find it - by model and engine type - using official Cadillac and DVLA sources
A unique identifier stamped on the engine block or cover used for parts and service.
The vehicle identification number that holds encoded vehicle and engine information.
The chassis or frame number used for registration and legal identification.
Locate the engine code on a white adhesive label affixed to the front timing cover, driver's side, near the oil filler. Clean the area before reading. Difficulty: Simple.
Engine code stamped into the aluminium block near the exhaust manifold or on a white label near the oil filler cap. Requires removing the acoustic engine cover for clear visibility. Difficulty: Moderate.
Code is cast into the rear timing cover on the passenger side of the engine bay. A mirror and torch are often required due to tight packaging. Difficulty: Moderate.
Electric motor identifier on inverter housing; battery pack code on high-voltage component label. Requires professional access due to high-voltage components. Difficulty: Complex.
Engine code locations per GM Service Information SI-00-00-00. V5C field definitions from DVLA Guide to Vehicle Registration. VIN structure compliant with EU Regulation (EC) No 715/2007, Article 7.
A technical breakdown of Cadillac's core engine systems including Northstar architecture, High Feature V6, EcoTec turbocharging, timing architectures and modular design with documented reliability impacts. All data sourced from GM Service Information, Cadillac TIS and EU Regulation (EC) No 715/2007
The Northstar is Cadillac's flagship DOHC V8 engine family introduced in 1993. Designed for smooth power delivery, high-revving capability, and luxury refinement, it powered the DeVille, Seville, STS, and DTS platforms across three generations. Features aluminium block, four valves per cylinder, and variable valve timing on later models.
Utilises a 90° cylinder bank angle, aluminium block and heads, dual overhead camshafts per bank, and a dry-sump lubrication system on performance variants. Intake uses composite plenums with electronic drive-by-wire. Exhaust routing incorporates active valves for variable sound profiles on V-Series models.
4.6L Northstar (1993)
270 HP, aluminium block, DOHC
4.6L Northstar (2000)
300 HP, VVT, improved head bolt design
4.6L Northstar (2006)
320 HP, revised cams, Euro 4 compliant
Head bolt/thread failure (pre-2004)
Coolant intrusion into cylinders; improved design post-2004
Thermostat housing leaks
Plastic housing cracks with age; aluminium replacement recommended
Oil pump drive chain wear
Rattling noise at idle; requires timing cover removal for inspection
The Northstar is Cadillac's flagship DOHC V8 engine family introduced in 1993. Designed for smooth power delivery, high-revving capability, and luxury refinement, it powered the DeVille, Seville, STS, and DTS platforms across three generations. Features aluminium block, four valves per cylinder, and variable valve timing on later models.
Utilises a 90° cylinder bank angle, aluminium block and heads, dual overhead camshafts per bank, and a dry-sump lubrication system on performance variants. Intake uses composite plenums with electronic drive-by-wire. Exhaust routing incorporates active valves for variable sound profiles on V-Series models.
4.6L Northstar (1993)
270 HP, aluminium block, DOHC
4.6L Northstar (2000)
300 HP, VVT, improved head bolt design
4.6L Northstar (2006)
320 HP, revised cams, Euro 4 compliant
Head bolt/thread failure (pre-2004)
Coolant intrusion into cylinders; improved design post-2004
Thermostat housing leaks
Plastic housing cracks with age; aluminium replacement recommended
Oil pump drive chain wear
Rattling noise at idle; requires timing cover removal for inspection
All technical descriptions and failure data sourced from GM Product Technical Reports, GM Service Information, Cadillac TIS, and EU Regulation (EC) No 715/2007 on vehicle type-approval.
Authoritative data on Cadillac's global engine production, plant operations, and General Motors partnerships. All figures sourced from GM Annual Reports, Sustainability Reports, and EU industrial compliance records.
Cadillac engines are produced at General Motors facilities specialising in specific families.
Cadillac produces approximately 250,000 powertrain units annually across GM plants. Note the steady decline in petrol production as Ultium-based electric powertrains rise per GM's electrification strategy.
Note: Cadillac has never produced diesel engines for European markets. Electric integration rising per GM's Ultium platform strategy and US/EU emissions policy.
Strategic collaboration within General Motors since Cadillac's founding. Cadillac shares HFV6, EcoTec, and Ultium powertrains with Chevrolet, GMC, and Buick, leveraging economies of scale while maintaining brand-specific tuning.
Modular HFV6/EcoTec architecture with brand-specific calibration
Engines built at Romulus/Tonawanda, tuned for Cadillac performance
GM Strategic Partnerships – Powertrain Sharing
Shift in production reflects US CAFE standards and GM's electrification strategy.
This aligns with US CAFE standards and GM's commitment to all-electric lineup by 2030.
Engine production years verified via GM Production Reports, Cadillac archives, and EU type-approval records
The most common questions about engine codes, what they mean, how to find them and how this database works
Confirm the full engine designation using vehicle-specific manufacturer records and the engine marking. An engine serial number, a registration record and a marketed power badge are not automatically the same identifier. Match the VIN/build data and the installed engine before selecting parts or a replacement.
No. A factory-application reference and a replacement-interchange decision are different. Match the full engine designation, vehicle build data, emissions equipment, controls and relevant supplier/OEM information.
No. Records have different review states. Read the correction notice, source scope and application limits on the individual record. Missing technical fields must not be inferred from similar engine codes.
EngineCode.uk provides reference information about Cadillac engines. It is operated by Engine Finders UK Ltd and also offers an optional replacement-engine enquiry service. Technical information can contain errors or omissions. Check the sources and verification notes for the relevant record, and confirm the details for your vehicle before buying parts or arranging work.
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