Porsche 996 2000-05 / 986 1999-04 RHD Brake Servo Cover 99655113304
Porsche 996 2000-05 / 986 1999-04 RHD Brake Servo Cover 99655113304
The original eBay listing currently calls this part a “Front ECM Cover”. That description is not supported by the independent parts-catalogue evidence checked. Part 996.551.133.04 is catalogued as a brake-booster lining / right-hand-drive trim piece for the front luggage-compartment area. Do not order this part as an engine-control-module cover. The part number and physical shape should be the primary checks before purchase.
This listing is for one used Porsche trim / lining component, part number 996.551.133.04 (99655113304). The current eBay item specifics list Porsche, used condition, plastic material, Germany origin and front placement. Independent catalogue and breaker evidence identifies the number with the brake-servo / brake-booster lining/cover area on RHD 996/986 applications.
This is not an ECM, ECU or electronic control unit. It is a moulded plastic trim component. It provides a finished/protected covering around the brake-booster/master-cylinder area.
The table is intentionally conservative. RHD/right-hand-drive configuration is a key condition for this part number.
| Make | Model / Platform | Verified years / variants | Fitment notes |
|---|---|---|---|
| Porsche | 911 / 996 | 2000–2005 | RHD / part 996.551.133.04. Independent catalogue pages show the number in 996 luggage-compartment diagrams for 2000, 2002, 2003 and 2004, and the part listing identifies it as a 996 brake-booster lining. A separate breaker listing shows a 2000 UK/GB RHD 996 donor with this exact part number. |
| Porsche | Boxster / 986 | 1999–2004 configurations documented | RHD examples documented. Confirmed examples include 1999–2002 Boxster S 3.2 and 2001 Boxster 2.7 donor data; eBay compatibility data for this exact part number also covers 1996/09–1999/08 2.5, 1999/06–2002/12 2.7, 1999/08–2002/07 2.7/S 3.2 and 2002/07–2004/12 2.7/S 3.2. For the early 1996–1999 range, confirm steering position and part shape before purchase. |
| Not confirmed | Any 997, 987, 996 LHD conversion or non-Porsche model | Do not assume fitment | Do not order for a 997/987 simply because the part number starts with 996. Verify the complete part number and physical mounting shape. |
Location: front luggage-compartment / front boot area around the brake-booster / master-cylinder zone on the relevant RHD 996/986 layout.
Function: trim, lining and protection. It helps finish and cover the brake-booster area. It does not generate hydraulic pressure, operate ABS, control the engine or act as an ECU.
Material: moulded plastic, consistent with the current eBay item specifics.
Why replace it? Broken clips, cracks, missing pieces, poor fit or a missing cover can leave the compartment unfinished and expose adjacent components. An accurately matched original part preserves the intended moulding geometry, mounting and appearance rather than adapting a cheap copy.
- Loose, rattling or visibly broken trim in the front luggage compartment.
- Missing cover/lining around the brake-servo area.
- Cracked mounting points, broken tabs or distorted plastic.
- Visible gaps where the original moulded cover should sit.
Estimated repair time: approximately 0.25–0.50 hour for a straightforward trim replacement where existing fasteners/clips are reusable and access is clear.
Typical tools: plastic trim-removal tool, small screwdriver/driver suitable for the retaining hardware, inspection light and clean cloth. Do not force aged clips.
- Open and secure the front luggage compartment.
- Confirm 996.551.133.04, mounting points, shape and RHD layout.
- Remove accessible retaining screws, clips or trim fasteners.
- Lift the old trim clear without disturbing brake hydraulic lines, wiring or the brake booster.
- Inspect mounting points and replace damaged clips/fasteners as required.
- Position the replacement and engage all tabs evenly.
- Check that the panel sits flush and nothing is trapped, pinched or rubbing.
Fitting service: available subject to availability.
Illustration using a 0.50 hour estimate. Labour only; not a quotation.
| Garage rate | 0.25 hr | 0.50 hr | Formula |
|---|---|---|---|
| £50/hour | £12.50 | £25.00 | rate × hours |
| £60/hour | £15.00 | £30.00 | rate × hours |
| £75/hour | £18.75 | £37.50 | rate × hours |
| £90/hour | £22.50 | £45.00 | rate × hours |
| £100/hour | £25.00 | £50.00 | rate × hours |
| £120/hour | £30.00 | £60.00 | rate × hours |
| £150/hour | £37.50 | £75.00 | rate × hours |
For trim and fit-sensitive components, an original manufacturer part is designed around the vehicle's factory mounting points, moulding geometry, material characteristics and surrounding clearances. A low-cost copy can look similar but use different plastic thickness, clip geometry, tolerances or surface texture. Correctly matching the part number and physical shape can save time and reduce the risk of modification.
Used can also be excellent value: on some vehicle parts, buying used can save up to 70% versus buying new.
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Before ordering, check part number + photo + steering position + model/platform + year. Where possible, we will verify fitment from the number and physical shape rather than relying on a generic model/year match.
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