
The Story
This OE Supplier timing chain tensioner (manufacturer part number 93010505803) is a direct-fit replacement for the Porsche applications listed in the fitment table below. It’s meant to solve the common issues you see on these cars—warning lights from broken sensors, sloppy clutch engagement from worn hardware, or oil temperature control problems from a sticking thermostat.
Technical Details
- Manufacturer part number: 93010505803
- Function: Maintains correct timing chain tension to prevent chain slap and timing drift
- Install note: Inspect ramps/idlers while you’re in there; worn guides shorten tensioner life.
Fitment & Compatibility
Use the fitment table below to confirm year/submodel and any notes. If your car has been modified or you’re unsure what’s currently installed, send us your VIN and we’ll help you verify fitment before you order.
We’ve been in the Porsche world for over 20 years, and we’ve learned that the details on parts like this matter. If you’ve got a fitment question, ask—getting the right part the first time saves time and headaches.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1983 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring; From Engine # 64D3717. | |
| 1984 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1985 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1986 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1987 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1988 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1989 | Porsche | 911 | Carrera | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1989 | Porsche | 911 | Speedster | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1991 | Porsche | 911 | Turbo | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1992 | Porsche | 911 | Turbo | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1989 | Porsche | 911 | Turbo Carrera | Also Use (Qty.) (1) 999 701 690 40 o-ring |
Description
This OE Supplier timing chain tensioner (manufacturer part number 93010505803) is a direct-fit replacement for the Porsche applications listed in the fitment table below. It’s meant to solve the common issues you see on these cars—warning lights from broken sensors, sloppy clutch engagement from worn hardware, or oil temperature control problems from a sticking thermostat.
Technical Details
- Manufacturer part number: 93010505803
- Function: Maintains correct timing chain tension to prevent chain slap and timing drift
- Install note: Inspect ramps/idlers while you’re in there; worn guides shorten tensioner life.
Fitment & Compatibility
Use the fitment table below to confirm year/submodel and any notes. If your car has been modified or you’re unsure what’s currently installed, send us your VIN and we’ll help you verify fitment before you order.
We’ve been in the Porsche world for over 20 years, and we’ve learned that the details on parts like this matter. If you’ve got a fitment question, ask—getting the right part the first time saves time and headaches.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1983 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring; From Engine # 64D3717. | |
| 1984 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1985 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1986 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1987 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1988 | Porsche | 911 | Also Use (Qty.) (1) 999 701 690 40 o-ring | |
| 1989 | Porsche | 911 | Carrera | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1989 | Porsche | 911 | Speedster | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1991 | Porsche | 911 | Turbo | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1992 | Porsche | 911 | Turbo | Also Use (Qty.) (1) 999 701 690 40 o-ring |
| 1989 | Porsche | 911 | Turbo Carrera | Also Use (Qty.) (1) 999 701 690 40 o-ring |





















