The Borg Warner S1B (312937) is a CHRA (center housing rotating assembly). Its cross-reference numbers are listed below. This is a new direct-fit replacement built to OEM specifications and backed by PT Turbo’s 12-month unlimited-mile warranty.
Details
- Condition: New
- Brand: Borg Warner
- Component OEM: Borg Warner
- Model: S1B
Cross Reference
About this CHRA
This is a new Borg Warner S1B CHRA (center housing rotating assembly), part number 312937. A CHRA is the center section of the turbo: the shaft, bearings, turbine wheel and compressor wheel, ready to bolt into your existing compressor and turbine housings, so check that those housings are undamaged before ordering.
No vehicle list is given for this number, so match it by part number.
To confirm the fit, read the part number on the tag or data plate of the part you are replacing and compare it with 312937 and the Cross Reference numbers above. If the tag is missing or unreadable, call (909) 824-1020 with your engine model and serial number and we will match it. See every Borg Warner S1B we list.
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