13B-REW Twin-Turbo Rotary Engines
from £2,500 to £6,500
Rebuilt units from £2,500 · Common codes: 13B-REW, 13B-MSP, 12A
Mazda ENGINE MARKETPLACE
Mazda RX- 7 Engine Replacement - Rebuilt & Performance Options Available
Get quotes from trusted UK Mazda RX-7 engine specialists. Compare rebuilt and performance reconditioned prices for 13B-REW - twin-turbo rotary covered. Find UK performance engine specialists.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
12A Naturally Aspirated Rotary Engines
from £1,800 to £4,200
Rebuilt units from £1,800 · Common codes: 12A, 13B, 13B-REW
Apex Seal Rebuild Specialist Rotary Engines
from £3,500 to £7,500
Rebuilt units from £3,500 · Common codes: 13B-REW, 12A, 13B-MSP
Instant engine replacement quote - 100% free, no obligation
Engine replacement near me - UK-wide specialist network
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 Mazda Rx-7 Replacement Engineto Finding the Best Mazda Rx-7 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
Average Market Prices
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↻ Last updated: 4 Aug 26, 9:26
Customer Reviews
Trusted by Mazda Rx-7 Owners Across the UK
Rated 4.8 out of 5 by 1,081 verified customers who sourced reconditioned and used Mazda Rx-7 engines through EngineMarket.
4.8
★★★★★
out of 5
1,081 verified reviews
★★★★★
“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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“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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Variants We Cover
Mazda Rx-7 Engine ReplacementAll Variants Covered
Mazda Rx-7 Type RZ
13B-REW 1.3L Petrol
Rebuilt Engines: £2,500-£6,500
Mazda Rx-7 Type RS
13B-REW 1.3L Petrol
Rebuilt Engines: £2,500-£6,500
Mazda Rx-7 Bathurst R
13B-REW 1.3L Petrol
Rebuilt Engines: £3,500-£7,500
Mazda Rx-7 Series 6
13B-REW 1.3L Petrol
Rebuilt Engines: £3,500-£7,500
Mazda Rx-7 Turbo II
13B 1.3L Petrol
Rebuilt Engines: £2,000-£4,800
Mazda Rx-7 GT-X
13B 1.3L Petrol
Rebuilt Engines: £2,000-£4,800
Mazda Rx-7 GT
13B 1.3L Petrol
Rebuilt Engines: £2,000-£4,800
Mazda Rx-7 FC Base
13B 1.3L Petrol
Rebuilt Engines: £2,000-£4,800
Mazda Rx-7 Savanna RX-7
12A 1.3L Petrol
Rebuilt Engines: £1,800-£4,200
Mazda Rx-7 Series II
12A 1.3L Petrol
Rebuilt Engines: £1,800-£4,200
Mazda Rx-7 GSL-SE
12A 1.3L Petrol
Rebuilt Engines: £1,800-£4,200
Mazda Rx-7 Series 5
13B-REW 1.3L Petrol
Rebuilt Engines: £2,500-£6,500
Not sure which variant your Mazda Rx-7 is- Enter your registration number above - we'll identify the exact sub-model, engine code and compatible replacement options instantly.
Rx-7
Engine Codes
Mazda Rx-7 Engine CodesFull Technical Specifications & Replacement Guide
Every engine code fitted to the Mazda Rx-7 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.
Petrol Engines
Extracted from detailed petrol and performance engine families across Mazda Rx-7 variants.
12A - 1.3L Petrol
Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
Compatible variants
Savanna RX-7Series IIGSL-SEFC Base
Avg. rebuilt price
£1,800 - £4,200
Supply only
Technical specifications
- Fuel type
- Petrol
- Engine size
- 1.3L
- Power output
- 100-135 hp
- Years fitted
- 1978-2002
Common failures
- ●Main replacement demand comes from timing-chain, cooling-system and performance thermal-management faults.
- ●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 Mazda Rx-7 engine specialists. Every rebuilt engine comes with a minimum 12-month unlimited mileage warranty.
Rx-7
Common Problems
Mazda Rx-7 Engine Problems - What It Costs to Fix & When Replacement Makes Sense
The Mazda Rx-7's unique rotary engines deliver thrilling performance but require specialist care. Apex seal wear, rotor housing scoring, and turbo failures dominate replacement enquiries for the 12A, 13B and 13B-REW engines. Every rebuilt engine supplied through EngineMarket includes upgraded internal components designed to address the original failure...
Apex Seal Failure - Why Mazda Rx-7 Rotary Engines Lose Compression
Apex Seal Failure
Most affected vehicles
Mazda Rx-7 FDFC
Mazda Rx-7 FD, FC, FB (1978-2002, 12A, 13B, 13B-REW)
Failure mileage range
50k-90k miles
Typical failure window
Root cause
Apex seals at rotor tips wear or fracture due to inadequate lubrication, thermal stress or carbon buildup, breaking the critical seal between rotor and housing that maintains compression.
Repair options & estimated costs (UK ranges)
| Repair tier | Dealer price | Specialist price | What it involves | Longevity / suitability |
|---|---|---|---|---|
| Minor - Apex Seal Replacement | £1,500 - £2,500 | £900 - £1,600 | Remove engine, disassemble rotary assembly, replace apex seals and side seals, reassemble with fresh components | Restores compression if housing isn't scored; viable preventative option when caught early before catastrophic damage |
| Full Replacement - Rebuilt / Reconditioned Engine | £4,500 - £8,000 | £2,500 - £6,500 | Supply and fit of rebuilt rotary engine with upgraded apex seals, rotor housing inspection, bench testing, 12-month warranty | Most reliable long-term solution for high-mileage or severely worn units; eliminates risk of recurring seal failure |
Our recommendation
Apex seal failure is the most common rotary engine problem. If compression loss is detected early and rotor housing scoring is minimal, a seal-only rebuild can be cost-effective. However, if the housing is scored or the engine has high mileage, a full rebuilt unit with upgraded components offers better long-term value and reliability.
Compare rebuilt Mazda Rx-7 rotary engine pricesReplacement Engine Options
Mazda Rx-7 Engine TypesOptions, Costs & What to Expect
Every Mazda Rx-7 engine type is available through our UK network with typical price ranges based on variant, engine code and budget.
Mazda Rx-7 Reconditioned Engines (Recon)£1,800 - £6,500((supply only))
Mazda Rx-7 Rebuilt Engines£2,500 - £7,500((supply only))
Mazda Rx-7 Used Engines£1,200 - £3,500((supply only))
Mazda Rx-7 Remanufactured Engines£3,000 - £7,500((supply only))
Mazda Rx-7 Refurbished Engines£2,000 - £5,500((supply only))
Compare Mazda Rx-7 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 Mazda Rx-7 within hours.
Engine Sizes
Mazda Rx-7 Engines by SizeFind the Right Displacement for Your Variant
Every displacement fitted to the Mazda Rx-7 is listed below, with compatible engine codes, production years and common failure notes to help identify your exact unit.
The Mazda Rx-7 exclusively used 1.3-litre twin-rotor Wankel engines across all generations, with the 12A, 13B and 13B-REW variants delivering 100-276hp depending on aspiration and tuning. This compact rotary design enabled the Rx-7's legendary weight distribution and handling balance.
⚙
Engine Code(s)
12A, 13B, 13B-REW
▣
Compatible Models (UK)
FB Savanna RX-7 (1978-1985), FC GT/GT-X/Turbo II (1986-1991), FD Type RZ/RS/Bathurst R
ϟ
Power output
Verified by registration
△
Common Failure Points
Apex seal wear causing compression loss, rotor housing scoring from inadequate lubrication, sequential turbo failure on 13B-REW units
Production Years: 1992-2002
Compare Mazda Rx-7 1.3L petrol engine pricesFuel Type
Mazda Rx-7 Engines by Fuel Type
Choose your Mazda Rx-7 engine by fuel type to compare realistic replacement prices, known issues, and compatible UK supply options - from early FB classics to the latest FD performance variants.
Mazda Rx-7 Petrol Engines
PetrolEvery Mazda Rx-7 was powered by petrol rotary engines, with the iconic 13B-REW twin-turbo defining the FD generation's performance credentials.
Common Mazda Rx-7 Petrol Engine Families
- •12A - FB/early FC naturally aspirated rotary (100-135hp), apex seal wear common
- •13B - FC naturally aspirated rotary (146-160hp), improved porting over 12A
- •13B-REW - FD sequential twin-turbo rotary (255-276hp), turbo and apex seal issues
Found In
- •FB Generation (1978-1985) - 12A engine
- •FC Generation (1986-1991) - 12A, 13B engines
- •FD Generation (1992-2002) - 13B-REW engine
Known For
- •Unique twin-rotor Wankel design with high-revving character
- •Apex seal wear requiring specialist rebuild knowledge
- •Strong enthusiast community and parts availability in UK
Typical Petrol Models
- •Type RZ
- •Type RS
- •Bathurst R
Mazda Rx-7 Petrol Engines
PetrolEvery Mazda Rx-7 was powered by petrol rotary engines, with the iconic 13B-REW twin-turbo defining the FD generation's performance credentials.
Common Mazda Rx-7 Petrol Engine Families
- •12A - FB/early FC naturally aspirated rotary (100-135hp), apex seal wear common
- •13B - FC naturally aspirated rotary (146-160hp), improved porting over 12A
- •13B-REW - FD sequential twin-turbo rotary (255-276hp), turbo and apex seal issues
Found In
- •FB Generation (1978-1985) - 12A engine
- •FC Generation (1986-1991) - 12A, 13B engines
- •FD Generation (1992-2002) - 13B-REW engine
Known For
- •Unique twin-rotor Wankel design with high-revving character
- •Apex seal wear requiring specialist rebuild knowledge
- •Strong enthusiast community and parts availability in UK
Typical Petrol Models
- •Type RZ
- •Type RS
- •Bathurst R
Not sure which fuel type your Mazda Rx-7 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 Mazda Rx-7 specialists.
Engine YearsGet quotes for 1978-1985 Mazda Rx-7 replacement engines →
Mazda Rx-7 Engines by YearWhat Was Fitted & WhenMazda Rx-7 Engines by Year - What Was Fitted & When
This section covers all major engine changes across the Mazda Rx-7's production timeline from 1978-2002, organised so owners can quickly identify their engine and compare rebuilt engine prices from UK specialists.
⚙Key Changes
- ✓FB generation launch with 12A naturally aspirated rotary engine
- ✓Lightweight chassis enabling balanced handling dynamics
- ✓Introduction to UK market via grey import channels
▣Main Engines
12A- 1.3L petrol (Savanna RX-7, Series II, GSL-SE)
▰Popular Models
- •Mazda Savanna RX-7
- •Mazda Series II
- •Mazda GSL-SE
🔧Known For
- ✓Simple naturally aspirated rotary design with good reliability
- ✓Apex seal wear emerging as primary failure mode from 60k miles
- ✓Strong enthusiast following for classic rotary character
Engine Codes Covered:
12ANot sure which year your Mazda Rx-7 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 Mazda Rx-7 specialists.
FAQ