10AN Male Press-Fit for Honda K-Series Radium Engineering - USA-RAD-20-0909 - Radium Engineering 10AN low profile swivel fittings simply press-in. No drilling or welding required. There are multiple valve covers for Honda K-series. They are all interchangeable. However, these Radium Engineering press-in fittings are NOT compatible with the earlier valve cover which do NOT have an OEM press-in fitting. COMPATIBLE VALVE COVERSK20A6K20A7K20Z2K20Z3K20Z4K24AK24A2 (06-08)K24A3k 24A4K24A8k 24Z1k 24Z2k 24Z3k 24Z4k 24Z5k 24Z6k 24Z7 NON COMPATIBLE VALVE COVERSK20AK20A1K20A2K20A3K20A4K20A9K20BK20Z1K23A1K24A1K24A2 (04-05) FEATURES-Stainless/Aluminum Construction-Low Profile 10AN Male Fitting-Anodized and Laser Engraved-Swivel Action with FKM O-Rings-Simple Press-Fit Installation Instruction PDF