|  | | | BMW E24 Main Engine Components - Page 1 | Pistons/Piston Sets | | Rebuilding your engine is a process that should be done right. For the most reliable of rebuilds, replace your pistons with new ones. If you are reusing your old pistons, make sure that you have them checked at a good machine shop to make sure that the ring grooves are not worn. Also, the cylinder bores should be honed. Failure to do so may result in a new set of rings not seating properly. |
| | Pistons (Standard Size) | | 11-25-1-274-206-BOE | Piston, Standard, 633CSi (9/81-84), Each [More Info] | No Longer Available | | | 11-25-1-286-435-BOE | Piston, Standard, 635CSi (1985-06/87), Each
Brand: Genuine BMW [More Info] | $242.75 |  | | Pistons (Oversize) | | Here at Pelican we are pleased to offer oversize pistons for instances where is necessary to bore your engine block. |
| | 11-25-1-286-437-BOE | Piston, Oversize, +0.25mm, 92.25mm, 635CSi (1985-06/87), Each
Brand: Genuine BMW [More Info] | $262.50 | | | 11-25-1-286-438-BOE | Piston, Oversize, +0.50mm, 92.50mm, 635CSi (1985-06/87), Each
Brand: Genuine BMW [More Info] | $251.25 | | Piston Ring Sets  | | Feel like you're married to your car sometimes? Anniversary of your car purchase coming up? Renew your vows with a new set of rings! If you aren't replacing your pistons, then you should re-ring them with new rings. Rings to fit over sized pistons are Special order, Please call. |
| | Piston Ring Sets (Standard Size) | 
11-25-1-261-130-M42 | Piston Ring Set, Standard, 88.97mm,1 Set Per Cylinder, 630CSi (1977), 633CSi (1978-84), Each
Brand: Goetze [More Info] |  |
| $15.50 | | 
11-25-1-714-383-M42 | Piston Ring Set, Standard, 91.97mm, 1 Set Per Cylinder, 635CSi (1985-89), Each
Brand: Goetze [More Info] | |
| $25.25 | | 
11-25-1-310-780-M42 | Piston Ring Set, Standard, 93.355mm, 1 Set Per Cylinder, M6 (1987-89), Each
Brand: Goetze [More Info] | |
| $37.50 | | | Piston Ring Sets (Oversize) | 
11-25-1-261-131 | Piston Ring Set, Oversize, +0.25, 89.22mm, 1 Set Per Cylinder, 630CSi (1977), 633CSi (1978-84), Each
Brand: Goetze [More Info] | $21.50 | | 
11-25-1-261-132-M42 | Piston Ring Set, Oversize, +0.50, 89.47mm, 1 Set Per Cylinder, 630CSi (1977), 633CSi (1978-84), Each
Brand: Goetze [More Info] | |
| $17.00 | | | 11-25-1-714-386-BOE | Piston Ring Set, Oversize, +0.50, 92.47 mm, 1 Set Per Cylinder, 635CSi (1985-89), Each
Brand: Genuine BMW [More Info] | $69.00 | | Piston Pin/Connecting Rod Bushings | | These bushings are used to support and secure the piston pin inside the piston, and hold it to the connecting rod. Always replace these bushings whenever you are doing a rebuild of your engine. |
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11-24-0-618-100-M41 | Piston Pin/Connecting Rod Bushing (6 per car, sold individually), 630CSi (1977), 633CSi (1978-84), 635CSi (1985-89), Each
Brand: Glyco [More Info] | |
| $3.75 | | Piston Pin Snap Rings | | These small snap rings are used to secure the piston pin in place on the connecting rod. Replace them whenever you are rebuilding your engine. It is cheap insurance against massive engine damage. |
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07-11-9-934-460-BOE | Piston Pin Snap Ring (6 per car, sold individually), 630CSi (1977), 633CSi (1978-84), 635CSi (1985-89), Each
Brand: Genuine BMW [More Info] | $0.75 | |
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