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PROMOTIONAL
REFERENCE
INDEX
x
X X
X
X
591
Application
CC Cyl.
Std. Bore
Std.
Stroke Size
Type
WPS#
List
Ring Set
List
Circlips
ARCTIC CAT (KAWASAKI)
‘71 EXT 340, ‘72-75 Cheetah 340, ‘75 Jag
339
2
2.362”
2.362”
STD.
OEM Style
54-685PS $40.95 54-685RS $13.50
340, ‘74 Lynx II 340, ‘71-75 Panther 340,
(60mm)
(60mm)
‘71-73 Puma 340 --- T1A, T1B, T1C, T1D
‘72-75 Cheetah 440, ‘71 EXT 440, ‘74 Lynx II,
436
2
2.677”
2.362”
STD.
OEM Style
54-688PS $43.95 54-688RS $12.95
‘74 VIP 440, ‘75 Pantera 440, ‘71-75 Pantera
(68mm)
(60mm)
440, ‘71-73 Puma 440 --- T1A, T1B, T1C, T1D
‘75-77 El Tigre 440Z
436
2
2.677”
2.362”
STD.
T-Moly
54-689PS $43.95 54-689RS $13.95
(68mm)
(60mm)
.020”
OEM Style
54-689P2*
43.95
**
ARCTIC CAT (SPIRIT)
‘77-80 Lynx 2000S --- AB-25F1-4
250
1
2.756”
2.559”
STD.
T-Moly
54-693PS $71.95 54-693RS $12.95 54-691C
(70mm)
(65mm)
.020”
T-Moly
54-693P2*
71.95
‘76 Jag 275, ‘78-80 Jag 2000 F/A,
275
2
2.126”
2.362”
STD.
OEM Style
54-690PS
38.95 54-690RS $12.50
‘77-80 Lynx 2000T F/A
(54mm)
(60mm)
‘76-77 Jag 340, ‘78-80 Jag 3000 F/A,
339
2
2.362”
2.362”
STD.
OEM Style
54-692PS $39.95 54-692RS $12.95
‘79-80 Jag 3000 F/C, ‘87-90 Jag 340,
(60mm)
(60mm)
‘90-91 Jag Mtn. Cat, ‘98-99 Jag 340 Deluxe,
‘91-93 Lynx, Lynx DLX, Lynx Mtn. Cat,
‘79-80 Trailcat 3000, ‘94 Cheetah 340,
‘94-97 Puma, Deluxe, ‘95-00 Bearcat 340,
‘98-00 Panther 340 --- AA34F, AF34A
‘01 Pantera 370, ‘00-07 Z 370,
367
2
2.362”
2.559”
STD.
T-Moly
54-603PS $76.95 54-603RS $17.95 54-601C
‘03-08 Panther 370 --- AA37A
(60mm)
(65mm)
• Engineered to provide the best possible path for combustion
chamber heat transfer to the cylinder walls
• All pistons, rings, pins and circlips are manufactured to OEM
specifications
• All individual components are interchangeable with original parts
• Piston weight compatible with original piston
• T-Molly Series offers a number of
performance benefits. See below
OEM STYLE
PISTON KITS
T-MOLY SERIES
PISTON KITS
Includes: 1 piston, 1 ring set, 1 wrist
pin and 2 circlips
HARD ANODIZED CROWNS
Pistons that are not anodized have a hardness
of HRB 60, while pistons that are anodized have
a hardness of HRB 105. This makes anodized
pistons 75% stronger than non-anodized pistons.
Anodizing:
• Increases heat resistance
• Minimizes piston expansion and contraction
• Reduces the coefficient of friction
HYPEREUTECTIC CAST
Is a piston with increased silicon content. The end
result is a piston that has an increased hardness, is
more resistant to wear, and has an increased ability
to withstand higher cylinder temperatures, pressure,
and detonation.
Hypereutectic Casting:
• Helps reduce expansion from heat
• Makes piston more durable and resistant to wear
• Allows piston to run tighter clearances
MACHINED SMOOTH HEADS
A machined smooth piston crown should
reflect combustion heat while reducing carbon
buildup and protecting the top of the piston.
Some tests have shown that a machined
smooth head can increase HP and fuel
economy by up to 6%.
MOS2 (Teflon-Molybdenum coating)
MOS2 is composed of sub-micron sized particles of
solid lubricant and resin blends of solvents. The coating
is rolled on, so it provides 10 times the bond strength of
spray on coatings.
MOS2 Coating:
• Draws heat through piston walls and out the bottom
• Reduces heat and friction, for added power and longevity
• Helps eliminate cold seizures, and increases durability
T-MOLY SERIES
Includes: 1 piston, 1 ring set, 1 wrist pin and 2 circlips
Continued on the next page
** Ring set available in piston kit only
For replacement circlips not listed use OEM
* Cylinder sleeving required for use of this piston
ENGINE