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MUFFLER AS 8N4975 - Caterpillar


8N4975 MUFFLER AS Caterpillar parts 3306, 3306B, 3406, 3406B, 3406C, 3408, 769D, 771D, C27, C32, TH48-E70
Rating:
11
Alternative (cross code) number:
CA8N4975
8N-4975
8N4975
Caterpillar 8N4975 MUFFLER AS
Weight: 43 pounds 19 kg.
Information:
BODY LENGTH  806.5  mm
INLET ID  168.28  mm
OUTLET OD  171.45  mm
PROTECTIVE SHIELD 
WITH EJECTOR 
WITH MOUNTING BRACKET 
WITH OUTER WRAP 
BODY DIAMETER/WIDTH  254 
OVERALL LENGTH  1098.6 
OVERALL HEIGHT  381 

Buy MUFFLER AS 8N4975 Caterpillar genuine, new aftermarket tractor parts with delivery
GEN SET ENGINE, TRUCK,

Related part:
8N4975  MUFFLER-AS-YM  4432661  CL

Compare Prices: .

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$555.40

10 Nov 2025

US: Rapartsoutletpr
8N4975 Mufflerr Fits Catterpillarr 7N6021 771D 769D 771C 769C
SOLOGEAR Part Numbers: MUK40-0087, 8N4975
$532.40

10 Nov 2025

US: Rapartsoutletpr
8N4975 Mufflerr Fits Catrpillarr 7N6021 771D 769D 771C 769C
SOLOGEAR Part Number: MUK40-0087, 8N4975, 8N4975-A, 7N6021, 7N6021-A
$324.99

10 Nov 2025
50.0[22.50] pounds
US: RAParts Inc.
RAParts 8N4975 Muffler Fits Caterpillar 7N6021 771D 769D 771C 769C
Reliable Aftermarket Parts One New Aftermarket Replacement Muffler || OD 6 3/4" || ID 6 3/4" || Overall Length: 45" || Replaces Part Numbers: 8N4975, 7N6021
Number on catalog scheme: 2
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Compatible equipment models: 8N4975:

GEN SET ENGINE  3306   3306B   3406B   3406C   3408  
GENERATOR SET  3306B   3406C  
INDUSTRIAL ENGINE  3406   3406B   3408   C27   C32  
PETROLEUM TRANSMISSION  TH48-E70  
QUARRY TRUCK  771D  
TRUCK  769D   Caterpillar

Information:

REBE2739-01
13Nov2007
(Revised 18Jan2008)
U-581
A-472
O-507
TT-43
Safety
RECALL PROGRAM FOR INSPECTING AND REPLACING THE OIL FILLER CAP ON C11/C13 TRUCK ENGINES IN CERTAIN KENWORTH 2005-2007 T600 AND T800 CHASSIS
1316 PI10641
This Program must be administered as soon as possible.When reporting the repair, use "PI10641" as the Part Number and "7751" as the Group Number, "56" as the Warranty ClaimDescription Code and "T" as the SIMS Description Code.
Exception: If the repair is done after failure, use "PI10641" as the Part Number, "7751" as the Group Number,"96" as the Warranty Claim Description Code, and "Z" as the SIMS Description Code.
This Revised Service Letter replaces the 13Nov2007 Service Letter. Changes have been made to the Action Required.
PROBLEM
This Product Improvement Program is a Safety Recall in accordance with the US National Traffic and Motor Vehicle Safety Act and the Canadian Motor Vehicle Safety Act. The oil filler cap can become dislodged due to cap damage or improper installation and become lodged in the u-joint of the steering driveline and steering gear. If the cap becomes lodged in this area, it may result in difficulty steering the vehicle and/or cause complete steering lock-up, which could result in a vehicle crash. It is a violation of US Federal law for a dealer to deliver a new motor vehicle or new or used engine covered by this Safety PIP until the PIP has been completed.
AFFECTED PRODUCT
Model Identification Number
*******Group 1*******
C13 KCB16422, 16475, 18483, 18485, 18635-18637, 18767, 18776, 18795, 18839, 18887, 18901, 18904, 18919, 18931, 18933, 18941-18944, 18952, 18980, 18982-18983, 19112-19115, 19123-19124, 19145, 19289, 19446-19447, 19449, 19490, 19532, 19641, 19648, 19657, 19666, 19669, 19673, 19695, 19701-19703, 19705, 19707-19708, 19718, 19721, 19723, 19752, 19755-19756, 19758, 19768, 19784, 19787, 19794, 19816, 19865, 19869, 19878, 19880, 19885, 19905, 19919, 19921-19923, 19925-19927, 19930-19931, 19933, 19935-19937, 19939-19940, 19942, 19944-19946, 19950, 19965-19966, 19968, 19970, 19972-19974, 19977-19978, 19981, 19998, 20003-20004, 20006, 20008-20010, 20124, 20128, 20177, 20197, 20224, 20241, 20251, 20258, 20260, 20263, 20269, 20272, 20297, 20304, 20307, 20316, 20324, 20326, 20332, 20345, 20349, 20352, 20354, 20359, 20476-20478, 20480-20487, 20489-20490, 20492-20500, 20502-20506, 20508-20509, 20511-20515, 20517, 20519-20522, 20524-20529, 20531, 20533, 20535-20538, 20540-20543, 20546-20548, 20550-20556, 20559-20565, 20568, 20570-20573, 20578-20580, 20583-20585, 20587-20588, 20590, 20592-20594, 20597-20598, 20600-20603, 20605-20611, 20613-20615, 20617-20622, 20625, 20627-20633, 20636, 20638, 20641-20677, 20679-20690, 20692-20696, 20701, 20703, 20710-20721, 20732, 20734-20736, 20740-20747, 20750, 20753-20756, 20764-20766, 20768-20769, 20772-20784, 20786-20788, 20793-20794, 20798, 20918, 21327, 21329, 21375, 21406, 21501, 21647, 21649, 21651, 21654, 21660, 21662, 21664-21668, 21705-21706, 21708-21709, 21713, 21716-21717, 21719-21723, 21726-21728, 21731-21732, 21735, 21737-21738, 21742, 21747-21748, 21750, 21755, 21757, 21759, 21763, 21766-21770, 21772, 21774, 21778-21779, 21781, 21783-21784, 21793, 21802-21803, 21810, 21812, 21816, 21818-21820, 21830, 21832-21833, 21835, 21838, 21841, 21845, 21853-21854, 21860-21862, 21864-21865, 21869, 21872-21873, 21875-21879, 21881, 21883, 21885, 21892, 21897, 21899, 21904-21905, 21911-21912, 21914-21915, 21917, 21919, 21922, 21924-21927, 21930-21932, 21936, 21938, 21941, 21943-21944, 21948-21950, 21952, 21954, 21957, 21960, 21962-21964, 21973, 21980-21982, 21984-21985, 21989, 21991, 21993, 21996, 22000, 22006-22007, 22009, 22013, 22015, 22019-22020, 22022-22029, 22036-22039, 22044, 22049, 22051-22052, 22054, 22056-22057, 22059-22060, 22063, 22067-22068, 22080, 22085, 22091-22092, 22095-22097, 22099, 22105-22106, 22110-22111, 22117-22118, 22121, 22124, 22126, 22133, 22135-22136, 22138-22140, 22144-22145, 22148-22149, 22155, 22157, 22159-22160,

Caterpillar parts catalog:

Caterpillar parts catalog
TH48-E70-C27I Petroleum Power Train Package AT400001-UP POWERED BY C27 Industrial Engine
3306 Generator Set 85Z00001-03763
3408B Generator Set 78Z01144-04866
3408B Industrial Engine 67U11092-UP
3406B Generator Set 4RG00001-01501
3406 Industrial Engine 90U19731-UP
3306 Generator Set 85Z03764-UP
3306B Generator Set 9NR00001-UP
3406C Generator Set 1LS00001-UP
3406C Generator Set 4ZR00001-UP
3406C Industrial Engine 6TB09857-UP
3406C Generator Set 2WB11476-UP
3408C Generator Set 78Z04867-UP
3406C Generator Set Engine 4RG01502-UP
3406C Generator Set KPS00001-UP
3306B Generator Set B8D00001-UP
C32 Industrial Engine TLD00001-UP
C27 Industrial Engine TWM00001-UP
TH48-E70-C27I Petroleum Power Train Package JGC00001-UP POWERED BY C27 Engine
TH48-E70-C32I Petroleum Package JGC00001-UP POWERED BY C32 Engine
CX35-P800-C27I Petroleum Power Train Package PCY00001-UP POWERED BY C27 Engine
C27 Industrial Engine RAM00001-UP
C32 Industrial Engine NST00001-UP
3406C Industrial Engine 7T200001-UP
C27 Industrial Engine AT400001-UP
C32 Industrial Engine BT400001-UP
3408B Industrial Engine 67U11092-UP
3406C Industrial Engine 6TB09857-UP
769D Off-Highway Truck BBB00001-UP (MACHINE) POWERED BY 3408E Engine
771D Quarry Truck BCA00001-UP (MACHINE) POWERED BY 3408E Engine
TH48-E70-C27I Petroleum Power Train Package AT400001-UP POWERED BY C27 Industrial Engine


Parts muffler Caterpillar catalog:

8S6558 MUFFLER AS
16, 3126B, 3304, 3306, 3306B, 3406, 3406B, 3406C, 621, 623, 980, C-9, C7, C9, CX31-C9I, TH31-E61
9S9328 MUFFLER
3208, 3304, 3306, 3306B, 515, 518, 518C, 525, 527
1W2491 MUFFLER AS-EJECTOR
3406C, 3408, 3408C, 3408E, 3412, 3412C, 3456, 621B, 627F
8S6559 MUFFLER AS
3306B, 3406B, 3406C, 657, C15, C18, CX31-C15I, CX35-P800, TH35-C15I
2243156 MUFFLER AS
844H, 854K, 990H, 992K, C27
2243157 MUFFLER AS
844H, 854K, 990H, 992K, C27
7N6021 MUFFLER AS
768C, 769C, 769D, 771C, 771D
1W2491 MUFFLER AS-EJECTOR
3406C, 3408, 3408C, 3408E, 3412, 3412C, 3456, 621B, 627F
1W4291 MUFFLER AS
3406B, 3406C, 3406E, 3408, 3456, C-15, C-16
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