Honda B Series Oil Dipstick 15650-P30-000

Genuine Honda B-Series Oil Dipstick (15650-P30-000)

Your dipstick's bent, the markings are worn off, or you're doing a B-series swap and the one you've got is the wrong length. Either way, this is the fix. The genuine Honda B-series oil dipstick (part 15650-P30-000) is the OEM replacement for B16, B17, B18, and B20 engines, correct length, correct bend, correct markings. That's what makes it worth caring about, because a dipstick that reads wrong is worse than no dipstick at all.

Why The Right Dipstick Actually Matters

A dipstick isn't just a stick. It has to be the exact right length to reach the bottom of your oil pan, and the bend has to match your engine so it seats properly in the tube. Get that wrong and your oil level readings are wrong, every single time you check.

Too short and it reads low when you're actually full. Too long or bent wrong and it reads high, so you think you're good when you're actually down a quart. And on a B-series, wrong oil level kills engines: running low starves the rod bearings and the VTEC head, and overfilling lets the crank whip the oil into foam, which kills oil pressure almost instantly. Both scenarios cost you a motor.

A $15 dipstick is a lot cheaper than a B18C5. Accurate oil readings start with the correct dipstick, and this is it.

Factory Length, Factory Markings

This dipstick has the correct factory oil level markings for B-series engines. Pull it out, wipe it clean on a rag, reinsert it all the way, pull it out again, and read the level. Between the two marks, you're good. Below the low mark, add oil. Above the high mark, drain some out.

It's that simple, but only if your dipstick is giving you accurate readings in the first place. A worn or wrong-length stick turns a basic check into a guess. This one reads true.

Especially Useful For Swaps

If you're dropping a B-series into an EF, EG, EK, or DC chassis and the swap came without a dipstick, or came with one from a different B variant, this is the part you need.

Using a B18B dipstick in a B16 (or vice versa) gives you slightly off readings, because the different engines have different oil pan capacities and geometries, and the dipstick is calibrated to its specific pan. Use the correct part number and stop guessing at your oil level on a freshly built engine, which is exactly when you most want it right.

Need The Dipstick Tube Too?

This is the dipstick only. If your dipstick tube, the metal tube pressed into the block that this slides into, is cracked, snapped off, or missing, the B-series dipstick tube (part OHA-11111-PR3-300) is available separately. If your tube's broken, order both.

One note: that tube does not fit the B20 found in the 1997-1998 CR-V, so if you're on that engine and need a tube, it's a different part.

How To Check Your Oil Correctly

Since you've got the right dipstick, here's how to get an accurate reading from it.

Check on flat ground with the engine off and cooled for at least five minutes. Pull the dipstick, wipe it clean, reinsert it all the way, pull it out again, and read. Checking right after shutdown gives a false low reading because oil is still draining back into the pan, which is how people overfill chasing a reading that was never accurate. And don't overfill, if you're above the high mark, drain some out, because foamed oil doesn't lubricate.

Fitment

1992-2001 Acura Integra, RS, LS, GS, GS-R, Type R (B16/B17/B18)
1999-2000 Honda Civic Si / EM1 (B16A2)
1994-1997 Honda Del Sol VTEC (B16A3)
1997-1998 Honda CR-V (B20B)

Covers B16A2, B16A3, B17A1, B18A1, B18B1, B18C1, B18C5, and B20B. Part number 15650-P30-000. Genuine Honda.

Who Should Grab One

This is for anyone whose dipstick is bent, worn, or missing, and for any B-series swapper who needs the correct-length stick for accurate oil readings on their build. Genuine Honda, correct length and bend, factory markings, and cheap insurance on accurate oil level, which on a B-series is the difference between a healthy engine and a spun bearing. Grab the tube too if yours is broken, and check your oil right.

Fits: 1992-2001 Integra, 1999-2000 Civic Si (EM1), 1994-1997 Del Sol VTEC, 1997-1998 CR-V. Engines: B16A2, B16A3, B17A1, B18A1, B18B1, B18C1, B18C5, B20B. Part number: 15650-P30-000. Type: genuine Honda, dipstick only. Companion: dipstick tube (OHA-11111-PR3-300) sold separately, not for 97-98 CR-V B20.