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sptRET-MC50-T1
Supertech Titanium Retainer for Opel Z18 5.0mm Valve Stem Std Installed Height - Single (D/S Only)
sptRET-TS50-T1
Supertech Titanium Retainer for Opel Z18 Triple Groove 5.0mm Valve Stem Spring (STD Install Height)
sptRET-EC3020-T1
Supertech Titanium Retainer for SPR-EC3020 Series
sptRET-EC3020-T6P
Supertech Titanium Retainer for SPR-EC3020 Series 6mm Valve Stem 6 Degree Toyota 2RZ
sptRET-H60-T1
Supertech Titanium Retainer for SPR-H1000
sptRET-H66-T1
Supertech Titanium Retainer for SPR-H1000 / 6.6mm Valve Stems