Supertech – 5.5 mm valve stem seals for Honda engines (set of 16 – intake & exhaust)

Complete Supertech valve stem seal kit for Honda engines with 5.5 mm valve stems. The kit includes 16 seals – 8 intake and 8 exhaust. Designed for performance and reliability, these seals offer enhanced durability and dimensional stability, often performing better than OEM despite a lower price.

Why choose Supertech?

• Precise fit on valve guides ensuring tight and stable sealing.
• Specialized material compounds: intake seals for flexibility and tightness, exhaust seals for high-temperature resistance.
• Suitable for both stock and modified engines – turbocharged, high-rev, or track builds.
• Excellent value for money compared to OEM alternatives.

Replaces OEM part numbers

Intake valve stem seals – OEM numbers:
12210-PZ1-003, 12210-PZ1-004, 12210-PJ7-003, 12210-P45-G01

Exhaust valve stem seals – OEM numbers:
12211-PZ1-003, 12211-PZ1-004, 12211-PJ7-003, 12211-PJ7-013, 12211-P45-G01

Compatible Honda engines

The following list includes common Honda engines that use 5.5 mm valve stems. If you’re unsure about fitment, provide your VIN or engine code and we’ll confirm compatibility.

• 1.0 – ECA1, P10A2
• 1.2 – L12A1, L12A2, L12A3, L12A4, L12B1, L12B2, L12B4
• 1.3 – L13A1, L13A3, L13A5, L13A6, L13A7, L13B2, L13Z1, L13Z2, L13Z4, LDA1, LDA2, D13B1, D13B2, D13B6, D13B7, D13B8
• 1.4 – D14A1, D14A2, D14A3, D14A4, D14Z1, D14Z2, D14Z5, D14Z6
• 1.5 – D15B1, D15B2, D15B6, D15B7, D15B8, D15Z1, D15Z3, D15Z6, D15Z8, D15Y3, L15A1, L15A6, L15BA, L15BB, L15B7, L15BY, LEA1, L15C2, L15BE, L15BG, L15BJ
• 1.6 – D16A6, D16A7, D16Z1, D16Z2, D16Z6, D16Z7, D16Z9, D16Y2, D16Y3, D16Y5, D16Y6, D16Y7, D16Y8, D16B2, D16W1, D16W2, D16W3, D16W4, D16W5, D16W7, D16B6, D16B7, D16V1, B16A1, B16A2, B16A3
• 1.7 – D17A2, D17A5, D17A8, D17A9, D17Z2, D17Z3
• 1.8 – B18C1, B18C4, B18C6, R18A1, R18A2, F18A2, F18A3, F18B2, F18B3, R18Z1
• 2.0 – F20A2, F20A3, F20A4, F20A5, F20A8, F20Z1, F20Z2, F20B3, F20B5, F20B6, F20C1, F20C2, F20B7, K20A2, K20A1, K20A, K20A4, K20A5, K20A9, K20A6, K20Z3, K20Z4, K20C1, LFC1, LFC2, LFC3, LFB1
• 2.2 – F22A1, F22A2, F22A4, F22B1, F22B4, F22B5, F22B8, H22A1, H22A2, H22A4, H22A5, H22A6, H22A7, N22A1, N22A2
• 2.3 – F23A3, F23A4, F23A7, F23A8, F23Z5
• 2.4 – K23A3
• 2.5 – G25A1, G25A4
• 3.0 – C30A1, C30A3, C30A4, J30A1, J30A4, J30A5
• 3.2 – C32A2
• 3.5 – J35A, J35A4, J35A5, J35A6, J35A9, J35Z2, C35A1, C35A2, C35A3, C35A4, C35A5

Technical details & installation

• Valve stem diameter: 5.5 mm
• Kit contents: 16 pcs (8 intake + 8 exhaust)
• Application: suitable for both stock and performance engines (high-rev, turbo, track use)
• Color identification: brown – intake, turquoise – exhaust (easy installation reference)
• Recommended use: head rebuilds, valve train upgrades, or when excessive oil consumption or blue smoke is observed

FAQ – frequently asked questions

Will this kit fit my engine?
If your engine is listed above and uses 5.5 mm valve stems, this kit will fit. When in doubt, send us your VIN or engine code for confirmation.

Is it worth using in a stock engine?
Yes. You’ll gain improved sealing and longevity at a lower cost than OEM replacements.

Is this a full kit?
Yes, the package includes all 16 seals – 8 intake and 8 exhaust – ready for a complete cylinder head rebuild.