do not press the back button…
-
All Parts
-
- Parts Accessories Chassis / Bodywork Brakes Clothing & Gifts Electrical & Relays Engine Cooling Engine Electrical Engine Rebuild Parts Engine Tuning Exhausts Exterior Styling / Spoilers Gearbox / Transmission Heating / Air Conditioning Hydraulics Interior & Accessories Incar / Multimedia Lighting Motorsport and Off-Road Parts for Other Cars Pedal Cluster Rubber Seals Seats & Seat Belts All Categories
-
- Brakes
-
Engine Rebuild
-
- Engine Rebuild Parts Intermediate shaft (IMS) Oil System Parts Fuel System Parts Gaskets & Sets Chains & Tensioners Timing covers and gaskets Engine Bearings / Shells Engine Valves / Guides / Springs Rocker Arms & Tappets Engine Bolts / Studs Engine Mounts Piston Rings Engine Cylinders / Liners / Pistons Connecting Rod Cylinder Head / Camshaft Carrier Camshaft covers / Gaskets Camshafts Camshaft gears / sprockets and fixings Crankcase Parts Crankshaft & Parts Engine Tinware Turbo Chargers / Intercoolers & Parts All Categories
-
-
Chassis & Bodywork
-
- Chassis / Bodywork Restoration Chassis / Repair Panels Bonnets / Locks & Latches Boots / Rear Lid / Locks and Latches Bumpers Front Bumpers Rear Door Handles | Locks | Keys Door Panels | Hinges | Striker Plates Window Lifters | Motors Exterior Chassis Mouldings Mirrors & Parts Front Wiper Arms & Blades Roof - Cabrio / Targa / Coupe / Speedster Sound Proofing Front screen Rear screen Front side glass Fastenings & Fixings
-
-
Suspensions & Axle
-
- Suspension & Axle Anti Roll Bar Anti Roll Bar Bushes Anti Roll Bar Bracket Ball Joints Drop Links & Bushes FRONT Drop Links & Bushes REAR Shock Absorber Parts FRONT Shock Absorber Parts REAR Track Control Arms FRONT Track Control Arm REAR Wheel Bearings & Kits Hub Nut Wishbones & bushes Torsion Bar Cross Member & Parts Wheel Hub / Carrier
-
-
Electrical
- Lighting
- Accessories
- Get to Know Us
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
Big End Conrod Bearing set. Porsche 924S / 944 / 968 ❭ 92810314315
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
This conrod bearing set is a high-quality replacement for the factory conrod bearings, manufactured to OEM specifications. This 8-piece set (one pair per connecting rod) maintains the correct oil film clearance between the connecting rods and crankshaft journals, ensuring smooth, friction-free rotation under high loads and high speeds.
Fits:
Porsche 924S - 1986 to 1988
Porsche 944 - 1982 to 1991
Porsche 968 - 1992 to 1995
Diagram Ref No 8
This is the ideal choice for engine rebuilds, performance refreshes, or preventative maintenance, restoring factory oil pressure, crankshaft alignment, and smooth engine operation.
• Location: Connecting-rod big-end journal to crankshaft interface
• Function: Maintains oil film support for the crankshaft and absorbs combustion loads transferred through the rod assembly
• Set Contents: 8 bearing shells (4 rods / V8 engine)
• Replacement Interval: At rebuild or low oil-pressure diagnosis
• Benefits OEM fit, precise clearances, durable film strength, quiet operation
• Installation: Fit as matched pairs per rod; use assembly lube and torque to spec
Rod bearings endure constant load, heat, and oil pressure, which causes gradual wear or fatigue over time. This can result in low oil pressure, knocking noises, or even engine damage. It’s essential to replace them during an engine rebuild, crankshaft service, or whenever oil analysis shows metal debris or pressure loss. Installing a new set restores precise oil clearance, consistent pressure, and long-term reliability in the engine’s bottom end.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
92810314315
The product you are viewing cross references to these numbers
- Porsche 914 (1970-1976)
Restore dependable crankshaft support and oil-film control during an engine rebuild with these OE Match Steel Backed Main Bearings for VW Type 4 and Porsche 914 engines, available under references 021198493AOST, 021198495AOST, 021198491AOST, 021198483AT, 021198485AT, 021198487AT, and 021198481AT.
Engine: VW Type 4, 411, 412 and Porsche 914
Sizes available:
• STD Case/STD Crank
• STD Case/.010 Crank
• STD Case/.020 Crank
• STD Case/.030 Crank
• .020 Case/ STD Crank/ Thrust+4mm
• .020 Case/ .010 Crank/ Thrust+4mm
• .020 Case/ .020 Crank/ Thrust+4mm
Please Pick size when ordering below
Main bearings are critical internal engine components positioned between the crankshaft main journals and the engine crankcase. They support the crankshaft as it rotates and provide a precisely controlled running surface that allows the crankshaft to operate smoothly on a pressurised film of engine oil. Correct bearing clearances are essential for maintaining oil pressure, reducing friction, controlling crankshaft movement, and protecting both the crankshaft and crankcase.
What This Product Does:
- Support the crankshaft within the engine crankcase.
- Provide a controlled running surface for the crankshaft main journals.
- Allow the crankshaft to rotate smoothly on a lubricating oil film.
- Help maintain correct crankshaft alignment.
- Help control crankshaft radial movement.
- Support correct crankshaft end float where applicable.
- Reduce direct metal-to-metal contact between the crankshaft and crankcase.
- Help maintain correct engine oil clearances and lubrication.
- Withstand substantial combustion and rotational loads.
- Provide steel-backed construction for strength and dimensional stability.
- Replace worn or unsuitable main bearings during an engine rebuild.
- Suit compatible VW Type 4 and Porsche 914 engine applications.
Symptoms Of Wear Or Failure:
- Low engine oil pressure.
- Oil pressure warning appearing at idle or when the engine is hot.
- Deep knocking or rumbling noises from the lower engine.
- Excessive crankshaft movement or end float.
- Metallic particles or bearing material found in the engine oil.
- Metallic debris discovered in the oil filter or strainer.
- Abnormal crankshaft journal wear.
- Scoring, pitting, or discolouration of existing bearing surfaces.
- Excessive bearing clearance discovered during engine measurement.
- Reduced oil pressure following engine warm-up.
- Evidence of bearing overheating or oil starvation.
- Engine seizure or significant internal damage in severe cases.
Why Replacement Matters:
- Main bearings are fundamental to engine reliability because they support the crankshaft every time the engine operates. The crankshaft is subjected to substantial forces generated by combustion, piston movement, and rotational speed. The bearings must maintain a precise lubricated clearance while supporting these loads.
- As main bearings wear, their running clearance can increase. Excessive clearance may reduce oil pressure and allow increased crankshaft movement, potentially causing knocking, accelerated journal wear, and deterioration of other internal engine components.
- Severely worn or damaged bearings can lose their protective oil film and allow metal-to-metal contact between the bearing and crankshaft journal. This can generate excessive heat, score the crankshaft, damage the crankcase, contaminate the lubrication system with metallic debris, and ultimately result in major engine failure.
- Correct bearing sizing is particularly important when rebuilding a VW Type 4 or Porsche 914 engine. If the crankshaft has been reground or the crankcase has been align-bored, standard-size bearings may no longer provide the required clearances. The correct bearing specification must therefore be selected according to actual crankshaft and crankcase measurements.
- Replacing worn components with the correct OE Match Steel Backed Main Bearings – 021198493AOST, 021198495AOST, 021198491AOST, 021198483AT, 021198485AT, 021198487AT, or 021198481AT helps restore correct crankshaft support, bearing clearance, lubrication, and dependable engine operation when installed as part of a professionally measured and prepared engine rebuild.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0211984
The product you are viewing cross references to these numbers
- Porsche 914 (1970-1976)
Restore dependable connecting rod and crankshaft operation during an engine rebuild with these OE Match Rod Bearings for 1.7L and 1.8L VW Type 4 and Porsche 914 engines, available under references 021105707, 021105713, and 021105701.
Engine: VW Type 4 / Porsche 914 1.7L and 1.8L
Sizes available:
STD
.25mm / .010"
.50mm / .020"
Please Pick size when ordering below:
Rod bearings, also known as connecting rod bearings or big-end bearings, are precision engine components fitted between the connecting rod big ends and the crankshaft rod journals. They provide a low-friction running surface that allows the connecting rods to move smoothly around the crankshaft while maintaining a controlled film of pressurised engine oil between the bearing and journal.
What This Product Does:
- Fit between the connecting rod big ends and crankshaft journals.
- Support smooth connecting rod movement around the crankshaft.
- Provide a controlled low-friction bearing surface.
- Maintain a protective film of pressurised engine oil.
- Help prevent direct metal-to-metal contact.
- Support correct connecting rod and crankshaft clearances.
- Help maintain dependable engine lubrication and oil pressure.
- Withstand combustion forces and high rotational loads.
- Protect the crankshaft rod journals against excessive wear.
- Replace worn or damaged connecting rod bearings.
- Suit compatible 1.7L and 1.8L VW Type 4 and Porsche 914 engines.
Symptoms Of Wear Or Failure:
- Deep knocking or tapping noises from the engine.
- Knocking that becomes more noticeable with engine speed or load.
- Low engine oil pressure.
- Oil pressure warning when the engine is hot.
- Metallic particles or bearing material in the engine oil.
- Metallic debris found in the oil filter or strainer.
- Excessive connecting rod bearing clearance.
- Scoring or wear on crankshaft rod journals.
- Scratched, pitted, or discoloured bearing surfaces.
- Evidence of bearing overheating or oil starvation.
- Increased engine vibration or rough mechanical operation.
- Severe internal engine damage or seizure in advanced cases.
Why Replacement Matters:
- Connecting rod bearings are among the most heavily loaded components within an engine. Every combustion event places substantial force through the piston and connecting rod onto the crankshaft, with the rod bearing providing the critical lubricated interface between the connecting rod and crankshaft journal.
- As bearings wear, their running clearance can increase. Excessive clearance can reduce oil pressure and allow the connecting rod to move excessively against the crankshaft journal, producing the characteristic knocking associated with worn big-end bearings.
- If bearing wear progresses far enough for the protective oil film to break down, direct metal-to-metal contact can occur. This may rapidly damage the crankshaft journal, overheat or destroy the bearing, contaminate the lubrication system with metallic debris, and potentially cause the bearing to seize or spin within the connecting rod. Severe failure can result in extensive engine damage.
- Correct bearing sizing is especially important during an engine rebuild. If the crankshaft journals have been reground, standard-size bearings may no longer provide the correct oil clearance. The required bearing specification should therefore be selected according to accurate crankshaft journal measurements and the applicable engine specifications.
- Replacing worn components with the correct OE Match Rod Bearings – 021105707, 021105713, or 021105701 – for compatible 1.7L and 1.8L VW Type 4 and Porsche 914 engines helps restore correct connecting rod clearance, crankshaft protection, lubrication, and dependable engine operation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
0211057
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 914 (1970-1976)
Includes: 12 x Bearing shells / 2 x End shells
Fits:
Porsche 911 1965-75
Porsche 914 1970-76
Diagram Ref No 24 + 25
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91110190150
The product you are viewing cross references to these numbers
Monday-Friday: 8.30am - 5.30pm (GMT)
Saturday: Closed
Sunday: Closed