504 Diesel Engines
from £1,800 to £2,400
Rebuilt units from £1,800 · Common codes: XD2, XD90, XD4x88, XD3
Peugeot ENGINE MARKETPLACE
Peugeot 504 Engine Replacement - Rebuilt & Performance Options Available
Get quotes from trusted UK Peugeot 504 engine specialists. Compare rebuilt and performance reconditioned prices for XU and XUD series - 1.8L to 2.3L petrol & diesel covered. Find UK performance engine specialists.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
504 Petrol Engines
from £1,600 to £2,100
Rebuilt units from £1,600 · Common codes: XN1, XN2, XU9, XM7
504 V6 Cabriolet Engines
from £3,500 to £6,000
Rebuilt units from £3,500 · Common codes: ZMJ, XU8, XC7P
Instant engine replacement quote - 100% free, no obligation
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Compare reconditioned, rebuilt & used engine prices
Supply & fit available - parts and labour from vetted specialistsInstant engine replacement quote - 100% free, no obligationEngine replacement near me - UK-wide specialist networkCompare reconditioned, rebuilt & used engine pricesSupply & fit available - parts and labour from vetted specialistsHow It Works
3 Simple Steps3 Simple Stepsto Finding the Best Peugeot 504 Replacement Engineto Finding the Best Peugeot 504 Replacement Engine
12-Month Warranty
Supply & Fit Available
Nationwide Delivery
Trusted UK Suppliers
Most replacements completed within 3-5 days.
Live UK Engine Market Data
What Are UK Drivers Paying for Peugeot 504 Engine Replacement
The table below shows typical UK rebuilt engine costs across Peugeot 504 variants - compare failure causes, engine codes, fuel types, and price ranges to benchmark what UK drivers are paying.
Average Market Prices
↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Peugeot 504 Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Peugeot 504 engines through EngineMarket.
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“Thanks to EngineMarket, I saved over £1,200 on my engine replacement and got matched with a great local specialist within the hour.”
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“Got three quotes within an hour and chose the best deal easily. The whole process was quick, clear and stress-free.”
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“I wasn't sure what I needed, but they helped me identify the right engine and connected me with a trusted garage.”
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Variants We Cover
Peugeot 504 Engine ReplacementAll Variants Covered
Peugeot 504 GLD
XD2 2.3L Diesel
Rebuilt Engines: £1,800-£2,400
Peugeot 504 GR Estate
XD2 2.3L Diesel
Rebuilt Engines: £1,850-£2,450
Peugeot 504 Pickup
XD2 2.3L Diesel
Rebuilt Engines: £1,900-£2,500
Peugeot 504 D 2.1
XD90 2.1L Diesel
Rebuilt Engines: £1,700-£2,200
Peugeot 504 GL
XN1 2.0L Petrol
Rebuilt Engines: £1,600-£2,100
Peugeot 504 SR
XN1 2.0L Petrol
Rebuilt Engines: £1,600-£2,100
Peugeot 504 1.9 Petrol
XU9 1.9L Petrol
Rebuilt Engines: £1,550-£2,050
Peugeot 504 1.8 Petrol
XM7 1.8L Petrol
Rebuilt Engines: £1,500-£1,950
Peugeot 504 TI
XN2 2.0L Petrol
Rebuilt Engines: £1,750-£2,300
Peugeot 504 V6 Cabriolet
ZMJ 2.7L V
Rebuilt Engines: £3,500-£6,000
Peugeot 504 L Commercial
XD2 2.3L Diesel
Rebuilt Engines: £1,900-£2,500
Peugeot 504 Familiale Estate
XD2/XN1
Rebuilt Engines: £1,600-£2,450
Not sure which variant your Peugeot 504 is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
504
Engine Codes
Peugeot 504 Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Peugeot 504 across all generations, with technical specs, compatible variants and trims, known failure points, and average rebuilt prices from UK specialists. Select any engine code to compare quotes.
Diesel Engines
Extracted from detailed diesel engine families across Peugeot 504 variants.
XD2 - 2.3L Diesel
Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
Compatible variants
GLDGR DieselL DieselPickupFamiliale Diesel
Avg. rebuilt price
£1,800 - £2,400
Supply only
Technical specifications
- Fuel type
- Diesel
- Engine size
- 2.3L
- Power output
- 65-70 hp
- Years fitted
- 1975-1988
Common failures
- ●Main replacement triggers are timing chain wear, EGR / cooling faults and turbo-control issues.
- ●Confirm exact engine code and fitment before ordering.
- ●Ask for warranty and supply & fit terms.
Not sure which engine code?
Can't find your engine code- Enter your registration number above - we'll instantly identify the exact unit, its technical specifications, and live replacement prices from UK Peugeot 504 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
504
Common Problems
Peugeot 504 Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Peugeot 504's classic engines are robust but age brings known failure points - XD2 diesel head gaskets, XN petrol timing chains, and XU9 belt failures dominate UK replacement enquiries. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure point, plus a minimum 12-month...
XD2 Head Gasket Failure - Why Peugeot 504 Diesel Engines Overheat
XD2 Head Gasket Failure
Most affected vehicles
Peugeot 504 GLDGR
Peugeot 504 GLD, GR, Pickup, Familiale (1975-1988, XD2 Indenor 2.3L Diesel)
Failure mileage range
80,000-120,000 miles
Typical failure window
Root cause
Cylinder head warping under thermal stress combined with original gasket material degradation; exacerbated by cooling system neglect.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Gasket Replacement Only | £800 - £1,200 | £550 - £850 | Remove cylinder head, replace gasket, reseal liners | Short-term fix only; head may warp again if not skimmed |
| Intermediate - Head Skim + Gasket | £1,200 - £1,800 | £850 - £1,300 | Head removed, machined flat, new gasket, liner seals replaced | Viable if block is sound; 40-60k mile expectation |
| Full Replacement - Rebuilt XD2 Engine | £2,800 - £3,600 | £1,800 - £2,400 | Complete rebuilt unit with upgraded gasket, tested liners, bench-run | Best value for high-mileage 504s; 12-month warranty included |
Our recommendation
On a classic 504 valued £5k-£15k, a full rebuilt XD2 at £1,800-£2,400 offers better long-term value than repeated gasket repairs. We recommend replacement if the engine has covered over 100k miles or shows liner seal leakage.
Compare rebuilt XD2 engine prices for your Peugeot 504Replacement Engine Options
Peugeot 504 Engine TypesOptions, Costs & What to Expect
Every Peugeot 504 engine type is available through our UK network with typical price ranges based on variant, engine code and budget.
Peugeot 504 Reconditioned Engines (Recon)£1,500 - £2,200((supply only))
Peugeot 504 Rebuilt Engines£1,800 - £2,400((supply only))
Peugeot 504 Used Engines£800 - £1,600((supply only))
Peugeot 504 Remanufactured Engines£2,200 - £3,200((supply only))
Peugeot 504 Refurbished Engines£1,200 - £1,900((supply only))
Compare Peugeot 504 engine prices with vetted UK suppliers
All engine types include a minimum 12-month unlimited mileage warranty when sourced through EngineMarket. Prices are typical UK market ranges based on historical quote data from our network and depend on exact engine code, variant, mileage and supplier. Use our free comparison tool above - enter your registration to get tailored quotes for your specific Peugeot 504 within hours.
Engine Sizes
Peugeot 504 Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Peugeot 504 across its 1968-1988 production run is listed below, with compatible engine codes, years and common failure notes to help you identify the right replacement.
The smallest diesel option for early 504s, the 1.9L Indenor unit powered base models before 1975; now rare in the UK but sought by restorers aiming for period-correct specifications on pre-facelift saloons.
⚙
Engine Code(s)
XD4x88
▣
Compatible Models (UK)
D (early), base saloon imports
ϟ
Power output
Verified by registration
△
Common Failure Points
Carburettor diesel pump wear, timing gear scoring, liner corrosion
Production Years: 1970-1975
Get quotes for Peugeot 504 1.9L diesel enginesPeugeot 504 Engines Fuel Type
Peugeot 504 Engines by Fuel Type
Choose your Peugeot 504 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from the economical 1.6L petrol to the ultra-rare 2.7L V6 Cabriolet.
Peugeot 504 Diesel Engines
DieselDiesel power arrived in the 504 in 1975 with the Indenor family, dominating UK replacement demand due to the legendary XD2's durability and high mileage potential in saloon, estate and pickup variants.
Common Peugeot 504 Diesel Engine Families
- •XD2 - 2.3L workhorse (GLD/GR/Pickup), head gasket & liner seal issues drive replacements
- •XD90 - 2.1L early diesel (pre-1979), glow plug and injector wear common
- •XD4x88 - 1.9L rare early unit, mostly import/restoration interest
Found In
- •Saloon (1975-1985) - XD90, XD2
- •Estate/Familiale (1975-1988) - XD2, XD90
- •Pickup (1980-1988) - XD2, XD3 (swap)
Known For
- •XD2 legendary durability when maintained properly
- •Head gasket and wet liner seal failures at 80k-120k miles
- •Strong torque for estate and pickup load-carrying
Typical Diesel Models
- •GLD 2.3
- •GR Diesel Estate
- •Pickup 2.3D
1 of 3
Peugeot 504 Diesel Engines
DieselDiesel power arrived in the 504 in 1975 with the Indenor family, dominating UK replacement demand due to the legendary XD2's durability and high mileage potential in saloon, estate and pickup variants.
Common Peugeot 504 Diesel Engine Families
- •XD2 - 2.3L workhorse (GLD/GR/Pickup), head gasket & liner seal issues drive replacements
- •XD90 - 2.1L early diesel (pre-1979), glow plug and injector wear common
- •XD4x88 - 1.9L rare early unit, mostly import/restoration interest
Found In
- •Saloon (1975-1985) - XD90, XD2
- •Estate/Familiale (1975-1988) - XD2, XD90
- •Pickup (1980-1988) - XD2, XD3 (swap)
Known For
- •XD2 legendary durability when maintained properly
- •Head gasket and wet liner seal failures at 80k-120k miles
- •Strong torque for estate and pickup load-carrying
Typical Diesel Models
- •GLD 2.3
- •GR Diesel Estate
- •Pickup 2.3D
Peugeot 504 Petrol Engines
PetrolPetrol powered the 504 from launch in 1968, with the versatile 2.0L XN series dominating UK registrations; timing chain stretch (XN1) and Kugelfischer injection issues (XN2) are key replacement drivers.
Common Peugeot 504 Petrol Engine Families
- •XN1 - 2.0L carburettor (GL/GR/SR), timing chain stretch at 70k+ miles
- •XN2 - 2.0L Kugelfischer injection (TI), pump calibration and seal failures
- •XU9 - 1.9L late-model petrol, timing belt failure risk if neglected
Found In
- •Saloon (1968-1985) - XC7P, XM7, XN1, XN2, XU9
- •Estate/Familiale (1970-1988) - XN1, XU9
- •Cabriolet (1977-1983) - ZMJ V6 only
Known For
- •XN1 timing chain rattle and stretch is well-documented
- •XN2 TI injection offers classic performance but specialist maintenance
- •XU9 belt changes critical every 40k miles to avoid valve damage
Typical Petrol Models
- •GL 2.0
- •SR 2.0
- •TI 2.0 Injection
Peugeot 504 Performance & Specialist Engines
DieselThe Pininfarina 504 Cabriolet's exclusive 2.7L ZMJ PRV V6 represents the pinnacle of 504 performance; ultra-rare, collector-valued, and requiring specialist rebuilding knowledge.
Peugeot 504 Performance Engine Codes
- •ZMJ - 2.7L PRV V6 (Cabriolet only), oil pump wear and bearing issues
- •PRV (Peugeot-Renault-Volvo) jointly-developed 90-degree V6 architecture
- •Mechanical fuel injection with Kugelfischer-derived pump on early units
Found In
- •V6 Cabriolet (Pininfarina) (1977-1983)
Important Notes
- •Fewer than 1,000 ZMJ-engined Cabriolets produced worldwide
- •Replacement requires specialist knowledge of V6 mounting and cooling
- •Availability is extremely limited; rebuilt units command premium pricing
Not sure which fuel type your Peugeot 504 has- Enter your registration number above to instantly identify your engine code, fuel system and compatible replacement options - all backed by a minimum 12-month unlimited mileage warranty from UK Peugeot 504 specialists.
Engine YearsGet quotes for 1968-1970 Peugeot 504 replacement engines →
Peugeot 504 Engines by YearWhat Was Fitted & WhenPeugeot 504 Engines by Year - What Was Fitted & When
This timeline covers all major Peugeot 504 engine changes from 1968 launch to 1988 pickup production end, organised so classic car owners can quickly identify their engine and compare rebuilt prices from UK specialists.
⚙Key Changes
- ✓Model launch with 1.6L XC7P and 1.8L XM7 petrol engines
- ✓Rear-wheel drive layout with live rear axle
- ✓Pininfarina styling debuts on saloon body
- ✓No diesel options available in this period
▣Main Engines
XC7P- 1.6L petrol (base saloon)
XM7- 1.8L petrol (GL trim)
▰Popular Models
- •Peugeot 504 base saloon
- •Peugeot 504 GL
🔧Known For
- ✓Simple, robust early petrol engines with carburettors
- ✓Rust protection less advanced than later models
- ✓Highly sought by restorers for originality
- ✓Parts availability good for mechanicals, challenging for trim
Engine Codes Covered:
XC7PXM7Not sure which year your Peugeot 504 was built- Enter your registration number and we'll identify the exact engine, model year, and compatible replacement options instantly - all backed by a minimum 12-month warranty from UK Peugeot 504 specialists.
FAQ