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Case J920758 Timing Gear Housing Assembly
Case J920758 Timing Gear Housing Assembly - Image 2
Case J920758 Timing Gear Housing Assembly - Image 3
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Case J920758 Timing Gear Housing Assembly


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MaterialCast Iron
Injection Pump Mount3-Bolt Pattern
Engine SeriesCummins B Series
Weight3.5 kg
Mounting TypeBolt-On Flange
Package Dimensions35 × 22 × 18 cm

Manufacturer No.

  • J920758
  • 3920758
  • 3917759
  • 192475C3

OEM Part No.

  • J920758
  • J991069
  • J903276
  • J905731
  • J910411
  • J917759
  • J920518
  • 76192007
  • 76192368
  • E4540365

Engine Part No.

  • Cummins 4BT 3.9L
  • Cummins 6BT 5.9L
  • Cummins 4BTA 3.9L
  • Cummins 6BTA 5.9L
  • Case RPZ65
  • Case RPZ85
  • Cummins 4-390
  • Cummins 4T-390
  • Cummins 4TA-390
  • Cummins 6-590
  • Cummins 6T-590
  • Cummins 6TA-590

Interchange No.

  • AMJ920758
  • 3920758
  • 3917759

Fitment Vehicles

  • Case 5120
  • Case 5130
  • Case 5140
  • Case 5220
  • Case 5230
  • Case 5240
  • Case 5250
  • Case 8840
  • Case 8850
  • Case 8860
  • Case 8860HP
  • Case IH 1644
  • Case IH 2144
  • Case IH 1640
  • Case IH 2022
  • Case IH 2044
  • Case 1840
  • Case 1845C
  • Case 40XT
  • Case 60XT
  • Case 70XT
  • Case 75XT
  • Case 85XT
  • Case 550E
  • Case 550G
  • Case 550H
  • Case 650G
  • Case 850E
  • Case 850G
  • Case 1150E
  • Case 1150G
  • Case 855E
  • Case 1155E
  • Case 480E
  • Case 480F
  • Case 580E
  • Case 580K
  • Case 580L
  • Case 590L
  • Case 450C
  • Case 455C
  • Case 1896
  • Case 2096
  • Case 621B
  • Case 688BCK
  • Case 888
  • Case 584E
  • Case 585E
  • Case 586E
Technical specification for timing gear housing part number J920758. This component serves as the front gear cover assembly for Cummins B series engines used in Case and Case IH agricultural and construction machinery. The housing maintains precise alignment of the camshaft crankshaft and injection pump gear trains. Manufactured from cast iron with machined mounting surfaces and bearing bores. Designed for direct bolt-on installation with OEM gasket sealing surfaces. Compatible with 3-bolt injection pump configurations. Cross-references include Cummins casting number 3920758 and Case OEM numbers J991069 J905731 J910411 J920518 J917759.