Mazda B2600 Engine for Sale | OEM 2.6L G6 Inline-4 Pickup Truck
$2,699.00
Product Overview
- Displacement: 2,606 cc (2.6L / 159 cu in)
- Configuration: Inline-4, SOHC, 12 valves
- Horsepower: 121 hp at 4,500 rpm (North America)
- Torque: 149 lb-ft at 3,500 rpm
- Condition: OEM used, compression tested and inspected
- Availability: Call (240) 306-7051 to confirm current availability
- Shipping: Free freight to all 50 states, 5 to 10 business days
- All 4 cylinders pressure-tested with results shared before payment
- G6 versus G54B engine variant confirmed before every order ships
- Year and fuel system type documented before shipping
- Zero core charge required, your existing engine stays with you
- Backed by a 15 day replacement warranty against internal defects
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Description
Engine Background
The Mazda B2600 is a compact pickup truck produced from 1985 through 1993, sold under Mazda’s own name and also rebadged as the Ford Courier (and later Ford Ranger in some international markets) due to Ford’s partnership with Mazda during this period. The B2600 designation refers to the 2.6-liter engine, but which 2.6-liter engine depends entirely on the model year.
From 1986 to 1988, the B2600 used a Mitsubishi-sourced G54B engine. In 1989, Mazda replaced it with their own G6 engine, a completely new design that shares only its approximate displacement with the G54B. The G6 uses a different bore and stroke (92mm x 98mm versus the G54B’s 91.1mm x 98mm), different block architecture, and Mazda’s own twin-balance-shaft design. In North American specification the G6 produces 121 hp and 149 lb-ft of torque, a solid output for a naturally aspirated 2.6-liter four-cylinder of the era.
The B2600i (fuel-injected version) with the G6 engine is the most practical used replacement candidate. Parts support for the G6, while not as widespread as Japanese domestic market Mazda engines, is available through Mazda specialists and the dedicated B-series truck community. Call (240) 306-7051 to confirm G6 versus G54B variant availability for your truck.
When Replacement Becomes Necessary
- Rough idle that does not respond to basic tune, mass airflow sensor or idle air control valve on EFI versions
- Oil burning on startup, valve stem seal wear on high-mileage G6 engines
- Loss of compression on one or more cylinders, ring wear or valve seat failure
- Coolant leak at head gasket, aluminum head gasket failure on high-mileage or overheated engines
- Balance shaft timing chain noise, the twin balance shafts add complexity and wear points
- Oil leaks at front cam seal or distributor o-ring, common on aged G6 engines
Known Issues We Document Before Shipping
- G54B versus G6 confusion: the most critical issue. A 1986 to 1988 B2600 uses the G54B (Mitsubishi). A 1989 to 1993 B2600 uses the G6 (Mazda). These engines use different blocks, different heads, different accessories, and are completely non-interchangeable. We confirm the engine variant for every order.
- Balance shaft timing: the G6’s twin balance shafts add an additional timing component. If the balance shaft timing is off, the engine will vibrate excessively. We inspect the timing system for obvious issues before shipping.
- Head gasket sensitivity to overheating: the G6 aluminum head gasket can fail if the engine has been overheated. We compression test all 4 cylinders and inspect coolant for contamination before shipping.
- Limited rebuilder support: the G6 engine has fewer specialist rebuilders than mainstream Japanese engines like the Toyota 22R or Nissan KA24. When sourcing a used OEM unit, documented condition is especially important.
- EFI versus carburetor variants: some B2600 models used carburetors rather than EFI. We confirm the fuel system type before shipping to ensure compatibility with your truck’s existing fuel delivery system.
Mazda B2600 Engine Variants: G54B versus G6
Two completely different engines under one truck designation:
| Engine | Years in B2600 | HP | Notes |
|---|---|---|---|
| G54B (Mitsubishi) | 1986 to 1988 | 109 hp | Mitsubishi-licensed engine. 2,555 cc. Different bore/stroke from G6. Also found in Mitsubishi trucks and vans of the era. |
| G6 (Mazda) | 1989 to 1993 | 121 hp (North America) | Mazda-designed engine. 2,606 cc. 92mm bore x 98mm stroke. Twin balance shafts. Unique to Mazda B-series trucks. |
| INCLUDED- Long Block | Block, crankshaft, pistons, connecting rods, camshaft, cylinder head, valve train, balance shaft assembly, oil pan, and timing cover. |
|---|---|
| NOT INCLUDED | Intake manifold, fuel injection system or carburetor, exhaust manifold, distributor and ignition, alternator, power steering pump, starter, flywheel, accessory brackets. |
| Core Note | No core charge. You are not required to return your old engine. |
What Ships and What Does Not
| Mazda B2600i Pickup (1989 to 1993) | 2WD and 4WD- G6 engine with EFI |
|---|---|
| Mazda MPV (1989 to 1994) | Some MPV applications also used the G6 engine |
| Ford Courier (some markets) | Ford-badged versions of the B2600 in select international markets |
Direct-Fit Vehicle Applications
| Mazda B2600 engine | Most common buyer search |
|---|---|
| Mazda G6 engine | Engine code search |
| B2600 2.6L engine | Displacement buyer |
| Mazda B2600i engine | EFI fuel-injected version buyer |
| Mazda pickup 2.6 engine | Application descriptor |
| G6 Mazda engine | Code-specific buyer |
| Mazda B-series engine | Series designation buyer |
| 2.6L Mazda engine for sale | Displacement and make search |
| Mazda truck engine for sale | General Mazda truck buyer |
| Mazda B2600 motor | Motor vs engine buyer |
Not sure which engine your truck uses? Call us at (240) 306-7051. We confirm G6 versus G54B before every order ships.
Used OEM Versus Specialist Rebuild
For a B2600i (1989 to 1993) with engine failure, a documented used G6 with compression results uniform and head gasket condition assessed is the most cost-effective replacement path, since specialist rebuilders for the G6 are limited. For an early B2600 (1986 to 1988) with G54B, a specialist Mitsubishi 2.6 rebuild has slightly better support due to G54B use in Mitsubishi-branded vehicles. Either way, used OEM is typically the practical choice for these trucks.
Inspection Workflow
- Compression test logged across all 4 cylinders with uniformity reported
- Engine variant confirmed: G6 (Mazda) or G54B (Mitsubishi)
- Year and fuel system documented: carburetor or EFI
- Head gasket condition assessed via coolant cross-contamination check
- Balance shaft timing area inspected externally
- External oil leak survey at cam seal, distributor o-ring, valve cover, oil pan
Pre-Purchase Buyer Notes
- Confirm engine variant before ordering: the G6 and G54B are completely different engines despite sharing displacement and truck designation. Wrong engine in your truck creates accessory drive, mount, and harness mismatches throughout.
- Match fuel system: a carbureted G6 in an EFI chassis requires fuel system conversion. An EFI G6 in a carbureted chassis is simpler but requires fuel pump and ECU integration.
- Plan a head gasket refresh at install: aged G6 head gaskets are a known weak point. Inexpensive insurance against post-install coolant problems.
- Source supporting parts in advance: G6 parts are available but lead times can be longer than mainstream Japanese engines. Confirm gasket sets, timing components, and valvetrain parts availability before disassembly.
- Verify balance shaft alignment at install: the G6’s twin balance shafts must be correctly timed to the crankshaft, or vibration will be excessive. Have the factory service manual on hand.
Why Buy From Part Nests
- Engine variant confirmed: G6 (Mazda) versus G54B (Mitsubishi) documented before payment
- Year and fuel system identified: carburetor or EFI noted on every order
- All 4 cylinders compression-tested with uniformity reported
- Head gasket condition assessed for the G6’s primary failure mode
- Balance shaft timing area externally inspected
- No core return required
- Free freight delivery to every state
- 15 day replacement warranty against internal defects
- Call (240) 306-7051 to speak with someone who knows G6 versus G54B identification, B2600 versus B2600i fuel system differences, and Ford Courier rebadge compatibility
Additional information
| displacement | 2, 606 cc (2.6L / 159 cu in) |
|---|---|
| engine-code | G6 |
| configuration | 12 valves, Inline-4, SOHC |
| bore-x-stroke | 92 mm x 98 mm |
| compression-ratio | 8.6:1 |
| horsepower | 121 hp at 4, 500 rpm (North America) |
| torque | 149 lb-ft at 3, 500 rpm |
| aspiration | Naturally Aspirated |
| fuel-system | Multi-point EFI (B2600i) | Carburetor (some models) |
| block-material | Cast Iron |
| head-material | Aluminum alloy |
| balance-shafts | Twin balance shafts- reduces 4-cylinder vibration |
| production-years | 1989 to 1993 (G6 in B2600) |
| manufacturer | Mazda Motor Corporation |
| applications | Mazda B2600i pickup (1989 to 1993) | Mazda MPV (some) |
| key-note | NOT interchangeable with 1986 to 1988 G54B engine |
| condition | compression tested and inspected, Used OEM |
Completely different engines despite the shared 2.6L displacement and B2600 truck designation. The G6 is a Mazda design used 1989 to 1993, with 92mm bore, twin balance shafts, and SOHC 12-valve head. The G54B is a Mitsubishi design used 1986 to 1988, with 91.1mm bore and different head, block, and accessory layout. Heads, accessories, mounts, and harness are not interchangeable. Verify your truck's engine before ordering.
Year is the primary indicator. 1986 to 1988 B2600 trucks used the G54B Mitsubishi engine. 1989 to 1993 B2600 trucks used the G6 Mazda engine. Visual differences include the head casting, intake manifold layout, and accessory drive configuration. We verify engine variant on every order using the donor truck year and visible engine identification.
Ford and Mazda partnered during this era, so the Mazda B-series pickup was rebadged as the Ford Courier in some international markets (and earlier in North America). The Ford Ranger and Mazda B-series share underlying chassis architecture in certain years. For US-market B2600 buyers, the truck was sold under Mazda branding from 1986 onward. Earlier Ford Courier trucks shared the same chassis but used different engine specifications.
To reduce vibration. Inline-4 engines produce secondary vibration that scales with displacement; a 2.6L four is large enough to benefit significantly from balance shaft cancellation. The G6 uses twin counter-rotating balance shafts driven from the crankshaft via timing chain. Properly timed, the shafts produce a smooth-running 2.6L. Improperly timed, vibration is severe.
Yes, the SOHC G6 has interference geometry between the pistons and valves. A snapped or jumped timing chain causes valve-to-piston contact and head damage. Timing chain wear is a known issue on high-mileage G6 engines. We inspect timing components on every unit.
The 'i' suffix in B2600i denotes fuel injection. The B2600i uses Mazda's electronic fuel injection system with a mass airflow sensor. Some early B2600 models used carburetors. We confirm fuel system type (EFI or carburetor) on every order to match the chassis.
Yes, but from specialist suppliers. Mainstream auto parts retailers stock limited G6 components. Mazda specialty suppliers, B-series truck community vendors, and Japanese engine importers stock more comprehensive G6 parts inventories. Lead times can be longer than mainstream Japanese engines.
No. There is no core return required.
15 Day Replacement Warranty
Every used Mazda B2600 engine purchased through Part Nests carries a 15 day replacement warranty starting on the delivery date.
What Is Covered
- Internal defects already present when the engine arrives
- Performance materially different from how the engine was described
- Incorrect part shipped due to an error on our end
What Is Not Covered
- Damage caused during installation
- Damage from incompatible components, wrong balance shaft timing, or wrong fluid type
- External components unless specifically itemized
- Labor expenses of any kind
To start a warranty claim, reach us within 15 days of delivery at (240) 306-7051.
- Engine Variant Confirmed: G6 (Mazda) vs G54B (Mitsubishi) documented before payment
- Fuel System Identified: Carburetor or EFI noted on every order
- All 4 Cylinders Tested: Compression results shared before payment
- Head Gasket Assessed: G6 primary failure mode specifically inspected
- Balance Shaft Area Checked: Twin balance shaft timing externally inspected
- 15 Day Replacement Cover: Internal defects protected from delivery onward
4 reviews for Mazda B2600 Engine for Sale | OEM 2.6L G6 Inline-4 Pickup Truck
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Carl R. –
Got a G6 for a 1991 B2600i restoration. Engine variant confirmed as G6 (not G54B), EFI fuel system verified, head gasket condition assessed and disclosed as acceptable. All four cylinders tested uniform on compression. Balance shaft timing area externally inspected. Truck is back to daily-driver duty.
Pete F. –
Sourced a G54B for a 1987 B2600. Variant correctly identified as Mitsubishi-sourced (not the later Mazda G6), donor year confirmed. Honest about higher-mileage indicators (around 180k on the donor). Plan a head gasket service at install per their recommendation. Solid replacement for an aged unit.
Carl R. –
Got a G6 for a 1991 B2600i restoration. Engine variant confirmed as G6 (not G54B), EFI fuel system verified, head gasket condition assessed and disclosed as acceptable. All four cylinders tested uniform on compression. Balance shaft timing area externally inspected. Truck is back to daily-driver duty.
Pete F. –
Sourced a G54B for a 1987 B2600. Variant correctly identified as Mitsubishi-sourced (not the later Mazda G6), donor year confirmed. Honest about higher-mileage indicators (around 180k on the donor). Plan a head gasket service at install per their recommendation. Solid replacement for an aged unit.