Genuine 90021900930 Engine Oil Drain Plug

OE Quality 60-Day Returns

Genuine 90021900930 Engine Oil Drain Plug

Brand	Genuine 90021900930
Fits	Porsche · 60 vehicles

OE direct replacement. Engine oil drain plug for a precise factory-style fit.

Hardware and fittings part for secure oil pan service.

$24.61Free shipping

In stock · usually ships same day before 1pm CST

Step 1 — Confirm fitment

Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

Step 2 — Quantity

Free shipping to the continental U.S.

Free returns within 60 days if it doesn't fit when fitment is verified.

Not what you need? See all Engine Oil Drain Plug options

Engine Oil Drain Plug for Porsche Applications

This Genuine engine oil drain plug is a direct-fit service part for select Porsche models with an 18 x 1.5mm drain thread. Use it when servicing the oil pan on Porsche 911, Boxster, Cayman, 944, 924, and 928 applications that call for part number 90021900930.

Key Features

Genuine OE replacement engine oil drain plug
Thread specification: 18 x 1.5mm
Fits Porsche oil service applications listed below
Part number 90021900930 for accurate ordering and lookup
Built for routine engine oil drain service on Porsche 911 and Boxster models

Fitment Details

Fits 1999-2008 Porsche 911, N/A, 18 x 1.5mm
Fits 1997-2008 Porsche Boxster, N/A, 18 x 1.5mm
Fits 2006-2008 Porsche Cayman, N/A, 18 x 1.5mm
Fits 1983-1989 Porsche 944, N/A, 18 x 1.5mm
Fits 1987-1988 Porsche 924, N/A, 18 x 1.5mm
Fits 1980-1986 Porsche 928, N/A, 18 x 1.5mm

What It Helps Address

Replacing a worn or damaged oil drain plug during an oil change
Restoring proper sealing at the oil pan drain point
Correcting stripped or mismatched drain plug thread applications
Servicing Porsche 911, Boxster, Cayman, 944, 924, or 928 oil systems with the correct thread size

Installation Notes and Tips

Verify the drain plug thread size before installation and confirm the oil pan uses 18 x 1.5mm threads. Clean the drain opening and inspect the sealing surface during service. Always follow the vehicle manufacturer’s oil change procedure for your Porsche 911, Boxster, Cayman, 944, 924, or 928.

Quality Assurance

Genuine parts are selected for OE-style fit and application accuracy. Part number 90021900930 helps ensure the correct drain plug is ordered for the listed Porsche models.

This part fits 60 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Submodel	Position	Notes
2008	Porsche	911	Targa 4	N/A	18 x 1.5mm
2008	Porsche	911	Targa 4S	N/A	18 x 1.5mm
2008	Porsche	911	Carrera	N/A	18 x 1.5mm
2008	Porsche	911	Carrera 4	N/A	18 x 1.5mm
2008	Porsche	911	Carrera 4S	N/A	18 x 1.5mm
2008	Porsche	911	Carrera S	N/A	18 x 1.5mm
2008	Porsche	Boxster	—	N/A	18 x 1.5mm
2008	Porsche	Cayman	—	N/A	18 x 1.5mm
2007	Porsche	911	Targa 4	N/A	18 x 1.5mm
2007	Porsche	911	Targa 4S	N/A	18 x 1.5mm
2007	Porsche	911	Carrera	N/A	18 x 1.5mm
2007	Porsche	911	Carrera 4	N/A	18 x 1.5mm
2007	Porsche	911	Carrera 4S	N/A	18 x 1.5mm
2007	Porsche	911	Carrera S	N/A	18 x 1.5mm
2007	Porsche	Boxster	—	N/A	18 x 1.5mm
2007	Porsche	Cayman	—	N/A	18 x 1.5mm
2006	Porsche	911	—	N/A	18 x 1.5mm
2006	Porsche	Boxster	—	N/A	18 x 1.5mm
2006	Porsche	Cayman	—	N/A	18 x 1.5mm
2005	Porsche	911	Carrera	N/A	18 x 1.5mm
2005	Porsche	911	Carrera 4S	N/A	18 x 1.5mm
2005	Porsche	911	Carrera S	N/A	18 x 1.5mm
2005	Porsche	Boxster	—	N/A	18 x 1.5mm
2004	Porsche	911	Carrera	N/A	18 x 1.5mm
2004	Porsche	911	Carrera 4	N/A	18 x 1.5mm
2004	Porsche	911	Carrera 4S	N/A	18 x 1.5mm
2004	Porsche	Boxster	—	N/A	18 x 1.5mm
2003	Porsche	911	Carrera	N/A	18 x 1.5mm
2003	Porsche	911	Carrera 4	N/A	18 x 1.5mm
2003	Porsche	911	Carrera 4S	N/A	18 x 1.5mm
2003	Porsche	Boxster	—	N/A	18 x 1.5mm
2002	Porsche	911	Carrera	N/A	18 x 1.5mm
2002	Porsche	911	Carrera 4	N/A	18 x 1.5mm
2002	Porsche	911	Carrera 4S	N/A	18 x 1.5mm
2002	Porsche	Boxster	—	N/A	18 x 1.5mm
2001	Porsche	911	Carrera	N/A	18 x 1.5mm
2001	Porsche	911	Carrera 4	N/A	18 x 1.5mm
2001	Porsche	Boxster	—	N/A	18 x 1.5mm
2000	Porsche	911	—	N/A	18 x 1.5mm
2000	Porsche	Boxster	—	N/A	18 x 1.5mm
1999	Porsche	911	—	N/A	18 x 1.5mm
1999	Porsche	Boxster	—	N/A	18 x 1.5mm
1998	Porsche	Boxster	—	N/A	18 x 1.5mm
1997	Porsche	Boxster	—	N/A	18 x 1.5mm
1989	Porsche	944	—	N/A	18 x 1.5mm
1988	Porsche	924	—	N/A	18 x 1.5mm
1988	Porsche	944	—	N/A	18 x 1.5mm
1987	Porsche	924	—	N/A	18 x 1.5mm
1987	Porsche	944	—	N/A	18 x 1.5mm
1986	Porsche	928	—	N/A	18 x 1.5mm
1986	Porsche	944	—	N/A	18 x 1.5mm
1985	Porsche	928	—	N/A	18 x 1.5mm
1985	Porsche	944	—	N/A	18 x 1.5mm
1984	Porsche	928	—	N/A	18 x 1.5mm
1984	Porsche	944	—	N/A	18 x 1.5mm
1983	Porsche	928	—	N/A	18 x 1.5mm
1983	Porsche	944	—	N/A	18 x 1.5mm
1982	Porsche	928	—	N/A	18 x 1.5mm
1981	Porsche	928	—	N/A	18 x 1.5mm
1980	Porsche	928	—	N/A	18 x 1.5mm
No rows match your filter.