Supertech ST-GDE-HB55-E-OS1-8 – Exhaust Valve Guide Set (Honda B-Series, 5.5 mm)

Supertech’s ST-GDE-HB55-E-OS1-8 kit supplies eight manganese-bronze valve guides for the exhaust side of Honda B-series heads (B16A/B17A/B18C/B18C5) that use 5.5 mm valve stems. CNC-machined to tight tolerances, they improve heat transfer, reduce stem friction, and outlast the factory sintered guides.

Key Features

  • Manganese-bronze alloy offers superior wear resistance and thermal conductivity compared with OEM material—critical for high-rpm or boosted engines.

  • Precision CNC finish ensures perfect concentricity and stem support, maintaining valve sealing at extreme engine speeds.

  • Oversize +0.001″ outer diameter (12.09 mm) allows proper interference fit in serviced cylinder heads.

  • Direct fit for 5.5 mm exhaust valves, including Supertech black-nitride valves and most aftermarket options.

  • Complete set of 8—replaces every exhaust guide in a four-cylinder B-series head.

Technical Specifications

Parameter Value
Engine family Honda B16A, B17A, B18C, B18C5 (exhaust)
Valve-stem diameter 5.5 mm
Outside diameter 12.09 mm (+OS1)
Length 44.8 mm
Material Manganese bronze
Pieces per kit 8

Vehicle Compatibility

Brand Model Generation / Chassis Engine
Honda B15A - B16A, B17A, B18C, B18C5, B15A
Honda B16A - B16A, B17A, B18C, B18C5, B15A
Honda B17A - B16A, B17A, B18C, B18C5, B15A
Honda B18C - B16A, B17A, B18C, B18C5, B15A
Honda B18C5 - B16A, B17A, B18C, B18C5, B15A
SUPERTECH

SUPERTECH

Product Title: SUPERTECH High-Performance Engine Oil – Ultimate Protection for Car Enthusiasts Introducing SUPERTECH High-Performance Engine Oil, the premium choice for car enthusiasts seeking unparalleled engine protection and performance. Designed to meet the demands of high-performance vehicles, SUPERTECH ensures your engine runs smoothly and efficiently, enhancing both longevity and power. Key Features and Benefits: - Advanced Synthetic Formula: Provides superior lubrication and reduces engine wear, ensuring optimal performance under extreme conditions. - High Viscosity Stability: Maintains consistent viscosity across a wide temperature range, delivering reliable protection in both hot and cold climates. - Enhanced Fuel Efficiency: Formulated to minimize friction, helping you achieve better fuel economy without sacrificing power. - Superior Cleaning Agents: Keeps your engine clean by preventing sludge and deposits, promoting a longer engine life. - Compatibility with All Engine Types: Suitable for both gasoline and diesel engines, making it the versatile choice for all car enthusiasts. With SUPERTECH High-Performance Engine Oil, you can trust that your vehicle is receiving the best care possible. Don’t compromise on quality—experience the difference that premium engine oil can make. Upgrade your engine's performance today and feel the power of SUPERTECH. Order now and give your car the protection it deserves!

Supertech Honda B18C5/B18C1/B17A/B16A/B15A 12.09mm OD Exhaust Valve Guide - Set of 8

Brand: SUPERTECH Product id: 72298 MPN: ST-GDE-HB55-E-OS1-8
EAN: 5903713182849
Availability: Available to order
61.06€
60.45€ Excl. VAT: 49.96€
EU Shipping — No Import Taxes
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Tags: Engine\By Car Make\Honda\1.6 (B16)|Engine\By Car Make\Honda\1.7 (B17)|Engine\By Car Make\Honda\1.8 (B18)|Engine\By Car Make\Honda\2.1 (B21),

Brand Model Generation Engine
Honda B15A - B16A, B17A, B18C, B18C5, B15A
Honda B16A - B16A, B17A, B18C, B18C5, B15A
Honda B17A - B16A, B17A, B18C, B18C5, B15A
Honda B18C - B16A, B17A, B18C, B18C5, B15A
Honda B18C5 - B16A, B17A, B18C, B18C5, B15A

SUPERTECH

Product Title: SUPERTECH High-Performance Engine Oil – Ultimate Protection for Car Enthusiasts Introducing SUPERTECH High-Performance Engine Oil, the premium choice for car enthusiasts seeking unparalleled engine protection and performance. Designed to meet the demands of high-performance vehicles, SUPERTECH ensures your engine runs smoothly and efficiently, enhancing both longevity and power. Key Features and Benefits: - Advanced Synthetic Formula: Provides superior lubrication and reduces engine wear, ensuring optimal performance under extreme conditions. - High Viscosity Stability: Maintains consistent viscosity across a wide temperature range, delivering reliable protection in both hot and cold climates. - Enhanced Fuel Efficiency: Formulated to minimize friction, helping you achieve better fuel economy without sacrificing power. - Superior Cleaning Agents: Keeps your engine clean by preventing sludge and deposits, promoting a longer engine life. - Compatibility with All Engine Types: Suitable for both gasoline and diesel engines, making it the versatile choice for all car enthusiasts. With SUPERTECH High-Performance Engine Oil, you can trust that your vehicle is receiving the best care possible. Don’t compromise on quality—experience the difference that premium engine oil can make. Upgrade your engine's performance today and feel the power of SUPERTECH. Order now and give your car the protection it deserves!