
2598104
2598124
3-319
Engine Tools
Pistons, Rings and Connecting Rods
9U-5931 Piston Ring Groove Gauge
Model: 3114 and 3116 Engines
Warranty: Six Months
• Usedtomeasurepistonringgroove
• Checks top and intermediate ring
groovestodeterminepistonreus-
ability
• Used on one-piece aluminum
pistons: 7C-5668, 9Y-7452, 9Y-5536,
7E-1298, 7E-3428, 7E-3578
• Dimensions: 12.7 x 9.52 x 47.62 mm
(0.5 x 0.37 x 1.87 in)
Part Number Description
9U-5931 PistonRingGroove
Gauge
Piston Ring Groove Gauge Groups
Essential Tool
Model: See below
Warranty: Six Months
• Usedtoquicklyandaccuratelychecktopringgroove
pistonsforwear(checkstopringgrooveonly)
• Uses a simple Go/No-Go design (if piston passes through
gauge it cannot be reused)
• Improvesreliabilityofinspectionandreducesinspection
time
• Gauge repair and recalibration done only by manufacturer
(damaged blades can be replaced and adjustable design
allows gauge to be easily recalibrated)
References
NEHS0775 Tool Operating Manual
NEHS0834 Tool Operating Manual
NEHS0909 Tool Operating Manual
SEBF8059InspectionProceduresandSpecications
for Pistons
Note:SEBF8059alsospeciesthecorrectgaugeforagiven
piston part number
Piston Ring Groove Gauges (Horseshoe Type)
Part Number Engine Model
Manufacturer
Recalibration
4C-8164 3114 and 3116 No
186-0190 3126 Yes
4C-8165 3176 No
4C-8168 3300 No
4C-8169 3400 No
325-8422 3406 Yes
325-8418 3406 to 3412 Yes
132-4389 3406E No
9U-7360 3500 with Keystone
Rings
No
Piston Ring Groove Gauges (Horseshoe Type)
Part Number Engine Model
Manufacturer
Recalibration
246-1176 3500A and B with
Monotherm Pistons
Yes
204-8041 3500HD and 3524B Yes
208-7632 C12, C13, and 3196 Yes
208-7636 C16 Yes
325-8425 C18 and 3412D Yes
325-8419 C18 to C30 Yes
325-8423 C32 Yes
325-8420 C7 Yes
325-8417 C9 Yes
325-8421 C9 Yes