Bottom End / Internals

BMW Piston Ring Set B37 / B47 Engines Replacement Kolbenschimdt Complete Piston Ring Set for BMW B37 / B47 Diesel Engines This listing is for 1x Piston Ring set, please order accordingly. OEM Replacement Parts Direct Replacement to Original...

Rear Crankshaft Seal for BMW B37 / B47 / B57 / N47 / N57 Engines Replacement Rear Crankshaft Seal for BMW B37 / B47 / B57 / N47 / N57 Engines OEM Replacement Direct Replacement to Original Part PLEASE MAKE SURE to enter your REG /...

BMW Piston Ring Set for N47N / N47S1 / N57N - 11257812636 / 11257807289 Kolbenschmidt BMW Piston Ring Set for N47N / N47S1 / N57N Please note this listing is for 1x piston ring set, please order accordingly. If you require complete piston ring set for a...

ARP Mains Stud Kit for BMW 6 Cylinder B57 / B57S / M57N2 / N57 / N57N / N57S / N57Z These main studs are to secure the crank Mains caps, holding the crankshaft in the block The studs are a premium grade 8740 alloy which is rated as an aircraft material,...

ARP Rod Bolts for BMW 4 Cylinder Engines These rods bolts can be used with the standard Con Rods on the BMW 4 Cylinder Petrol & Diesel Engines This Kit Consists of the following: 8 x ARP Rod Bolts 1x...

ARP Mains Stud Kit for BMW 4 Cylinder M41 / M47 / M47N / M47N2 These main studs are to secure the crank Mains caps, holding the crankshaft in the block The studs are a premium grade 8740 alloy which is rated as an aircraft material, they are also heat...

ARP Rod Bolts for BMW 6 Cylinder Engines These rods bolts can be used with the standard Con Rods on the BMW 6 Cylinder Petrol & Diesel Engines This Kit Consists of the following: 12 x ARP Rod Bolts 1x...

ARP Mains Stud Kit for BMW 4 Cylinder B47 / B47B / B47D / N47 / N47N / N47S / N47S1 These main studs are to secure the crank Mains caps, holding the crankshaft in the block The studs are a premium grade 8740 alloy which is rated as an aircraft material,...

ARP Mains Stud Kit for BMW 6 Cylinder M51 / M57 / M57N / S50 / S54 These main studs are to secure the crank Mains caps, holding the crankshaft in the block The studs are a premium grade 8740 alloy which is rated as an aircraft material, they are also...

Piston Machining Service for BMW Diesel Pistons Darkside Developments are able to custom machine your pistons to allow for higher lift cams and lowered compression. Lowered compression is vital if you are running significant amounts of Nitrous. For daily...

Ceramic Piston Coating Service for all BMW / VAG TDi Pistons (1 Piston) This service is to ceramic coat (1) piston supplied by us or yourself (see piston listings below)If you supplying your own pistons additional return shipping will need to be...