PRODUCT DETAILS
Honda K20A3 Flywheel Inspection Cover - 21351-PNA-000
Missing your flywheel inspection cover after a clutch job or transmission swap? This is the genuine Honda lower transmission inspection cover for K20A3 engines with steel oil pans. It bolts between your oil pan and transmission to seal off the lower bellhousing area and keep road debris, dirt, and moisture away from your flywheel and clutch. This is part number 21351-PNA-000 and it fits 2002-2006 Acura RSX Base (automatic and manual) and 2002-2005 Honda Civic Si. If you're running a K20A3 engine, this is your part number.
Why Your Flywheel Inspection Cover's Missing
This cover gets pulled off during clutch jobs, transmission swaps, and K swaps and never makes it back on. It's one of those parts that's easy to forget when you're reassembling everything, but without it your flywheel and lower bellhousing are exposed to whatever's coming up from the road. If you're building a clean K swap or you're just putting your car back together properly, you need this cover to finish the job right.
For K20A3 Engines with Steel Oil Pans
This is the flywheel inspection cover for K20A3 engines with steel oil pans. The K20A3 uses a steel oil pan from the factory, so this is the correct part number for your RSX Base or EP3 Civic Si. If you're running a different K series engine with an aluminum oil pan (like K20Z1, K20Z3, K24), you need part number OHA-21350-PRB-000 instead. Check your engine code before you order.
What You Get
- Honda K20A3 flywheel inspection cover
- Part number: 21351-PNA-000
- Genuine Honda OEM replacement
- For K20A3 engines with steel oil pans
- Bolts between oil pan and transmission
Fits Your Car
- 2002-2006 Acura RSX Base (Auto & Manual)
- 2002-2005 Honda Civic Si EP3
Compatible Engines
- K20A3 (RSX Base, Civic Si EP3 with steel oil pan)
Note: This cover is for K20A3 engines with steel oil pans only. If you're running a different K series engine with an aluminum oil pan (K20A2, K20Z1, K20Z3, K24), you need part number 21350-PRB-000 instead. Some applications may not use every bolt hole depending on your chassis, but fitment and coverage are correct for K20A3 applications. Don't skip this cover when you're reassembling your transmission. Your flywheel and clutch need protection from road debris.