Availability
PAC Racing Springs Engines & Components
Dual Spring 500 Series Retainer - Titanium Retainer for PAC-1227, 1239, 1254, 1297 & 1509 Dual Valve Springs.
Part Number: RSC-PAC-R515
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
RETAINER Ti-17 TITANIUM
Part Number: RSC-PAC-R539
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Spring
Part Number: RSC-PAC-R539-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Steel Valve Locks - Standard 7 degree - Square Groove - +0.050 Install Height
Part Number: RSC-PAC-L8149
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Need It Sooner? We recommend these similar substitute parts:
Steel Valve Locks - Standard 7 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8153-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
VALVE LOCKS PAC STEEL
Part Number: RSC-PAC-L8163
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
VALVE LOCKS PAC STEEL
Part Number: RSC-PAC-LR8068
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
MX-MOTORCYCLE VALVE SPRING
Part Number: RSC-PAC-MX138
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
MX-YAMAHA
Part Number: RSC-PAC-MX143
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 8 degree - Square Groove - Standard Install Height
Part Number: RSC-PAC-L8055-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 8 degree - Square Groove - +0.050 Install Height
Part Number: RSC-PAC-L8057
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Steel Valve Locks - Standard 10 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8067
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
VALVE LOCKS PAC STEEL
Part Number: RSC-PAC-L8068
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Steel Valve Locks - Standard 8 degree - Square Groove - Standard Install Height
Part Number: RSC-PAC-L8073-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Steel Valve Locks - Standard 8 degree - Square Groove - +0.050 Install Height
Part Number: RSC-PAC-L8075-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Steel Valve Locks - Standard 8 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8076
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 10 degree - Radius Groove - Standard Install Height
Part Number: RSC-PAC-L8078
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 10 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8079-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 8 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8083
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Titanium Valve Locks - Standard 8 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8083-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Steel Valve Locks - Standard 8 degree - Radius Groove - +0.050 Install Height
Part Number: RSC-PAC-L8085
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
Dual Spring 300 Series Retainer - Retainer for PAC-1371 Valve Springs. Lock angle: mini 8 degree
Part Number: RSC-PAC-R348
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
RETAINER CHROME MOLY STEEL
Part Number: RSC-PAC-R373-16
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
RETAINER CHROME MOLY STEEL
Part Number: RSC-PAC-R380
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
RETAINER CHROME MOLY STEEL
Part Number: RSC-PAC-R381
Not Yet Reviewed
Estimated Ship Date: Apr 17, 2026 if ordered today
Estimated Ship Date: Apr 17, 2026 if ordered today
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