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Detroit Diesel Series 53 Torque Specifications |
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|
Thread Size (in.)
|
Description
|
Torque Specifications | |
| lb-ft | N-m | ||
|
1/4-20
|
Standard Torque Specification | 7-9 | 9-12 |
| Bolt-Injector Control Shaft Bracket | 10-12 | 14-16 | |
| Bolt-Cam Follower Guide | 12-17 | 16-23 | |
|
1/4-28
|
Standard Torque Specification | 8-10 | 11-14 |
| Screw-Injector Rack Control Lever | 2-3 | 3-4 | |
| 5/16-18 | Bolt-Oil Pan (Low Pan or Aluminum F/W Hsg. & Front Cover) | 10-20 | 14-27 |
| 5/16-18 | Bolt Water Pump Cover | 12-15 | 16-20 |
| 5/16-18 | Bolt-Flywheel Housing to Gov Housing (Inline) | 10-12 | 14-16 |
| 5/16-18 | Bolt-Oil Pick-up Tube | 20-25 | 27-34 |
| 5/16-18 | Bolt-Idler Gear Hub and Spacer Alum | 15-20 | 20-27 |
| 5/16-18 | Bolt-Air Box Cover 1/4 Thick Clamp | 8-10 | 11-14 |
|
5/16-18
|
Standard Torque Specification | 13-17 | 18-23 |
| Bolt-Idler Gear Hub and Spacer (Cast) | 19-23 | 26-31 | |
| Bolt-Oil Pan (Cast) – Hard Gasket | 13-21 | 18-28 | |
|
5/16-24
|
Standard Torque Specification | 15-19 | 20-26 |
| Nut-Push Rod Lock | 15-19 | 20-26 | |
| Bolt-Blower Rotor Gear Hub | 25-30 | 34-41 | |
| Bolt Blower Thrust Washer Retaining | 25-30 | 34-41 | |
| Bolt-Blower Drive Cam Pilot | 25-30 | 34-41 | |
| 5/16-24 | Nut-Connecting Rod V53 Only | 24-28 | 33-38 |
|
3/8-16
|
Standard Torque Specification | 30-35 | 41-47 |
| Bolt-Rocker cover Hold Down | 8-13 | 11-18 | |
| Bolt-Flywheel Housing to Idler Gear and Dummy Hub (Place Type) | 40-45 | 54-61 | |
| Bolt-Air Inlet Housing to Blower | 16-21 | 22-28 | |
| Nut-Oil Cooler Element | 90-110 | 122-149 | |
| Bolt-Front and Rear Blower End Plate Cover | 20-25 | 27-34 | |
| Bolt-Flywheel Housing Balance Weight Cover | 20-25 | 27-34 | |
|
3/8-16
|
Bolt-Front and Rear Blower End | 20-25 | 27-34 |
| Bolt-Housing to Intercooler | 10-15 | 14-20 | |
| Bolt-Air Box Cover Cast 6V53 | 12-17 | 16-23 | |
| Bolt-Air Box Cover Inline 53 | 12-16 | 16-22 | |
| Bolt-Air Box Cover 3/8 Thick Clamp | 10-15 | 14-20 | |
| Bolt-Injector Clamp | 20-25 | 27-34 | |
|
3/8-24
|
Standard Torque Specification | 35-39 | 47-53 |
| Connector-Fuel | 34-40 | 46-54 | |
| Bolt-Accessory Drive to Balance Gear (Steel Disc) | 45-0 | 61-68 | |
| Bolt-Blower Thrust Plate Retainer | 54-59 | 73-80 | |
| Bolt-Flywheel Housing Balance | 25-30 | 34-41 | |
| Bolt-Front and Rear End Plate Cover | 20-25 | 27-34 | |
| Nut-Connecting Rod Inline and Vee | 40-45 | 54-61 | |
| Nut-Plug blower Drive Assembly and Flywheel Housing Plug Nuts | 5-30 | 34-41 | |
| Nut-Fuel Jumper Line | 12-16 | 16-22 | |
|
7/16-14
|
Standard Torque Specification | 46-50 | 62-68 |
| Bolt-Tachometer Drive Cover | 30-35 | 41-47 | |
| Bolt-Crankshaft Outboard Main Bearing Support to Cover | 75-85 | 102-115 | |
| Bolt-Flywheel Housing Large Hole Cover | 30-35 | 41-47 | |
| Stud-Exhaust Manifold | 25-40 | 34-54 | |
| Bolt-Rocker Arm Bracket | 50-55 | 68-75 | |
|
7/16-20
|
Standard Torque Specification | 57-61 | 77-83 |
| Nut-Exhaust Manifold | 30-35 | 41-47 | |
|
1/2-13
|
Standard Torque Specification | 71-75 | 96-102 |
| Bolt-Tachometer Drive Cover | 30-35 | 41-47 | |
| Bolt-Flywheel Housing Large Hole Cover | 30-35 | 41-47 | |
|
1/2-20
|
Standard Torque Specification | 83-93 | 113-126 |
| Bolt-Blower Rotor Gear Retainer | 25-30 | 34-41 | |
| Bolt-Flywheel | 110-120 | 149-163 | |
| Plug-Fuel Pump Relief Valve | 18-22 | 24-30 | |
| 9/16-12 | Standard Torque Specification | 90-100 | 122-136 |
|
9/16-18
|
Standard Torque Specification | 107-117 | 145-159 |
| Stud-Clutch Fork Ball | 65-75 | 88-102 | |
|
5/8-11
|
Standard Torque Specification | 137-147 | 186-199 |
| Bolt-Starter To Aluminum Flywheel Housing | 95-105 | 129-143 | |
|
5/8-18
|
Standard Torque Specification | 168-178 | 228-241 |
| Nut-Governor Gear | 125-135 | 169-183 | |
| Bolt-Lube Oil Filter Center | 50-60 | 68-81 | |
| Nut-Alternator Pulley | 70-80 | 95-108 | |
| Nut-Special Self Locking Nut (10SI Alternator) | 40-60 | 54-81 | |
| Caps-Injector Filter | 65-75 | 88-102 | |
| Nut Standard, Dipstick Tube | 30-35 | 41-47 | |
| Nut-Accessory Drive Pulley | 120-140 | 163-190 | |
|
3/4-16
|
Standard Torque Specification | 290-300 | 393-407 |
| Bolt-Crankshaft End | 290-300 | 393-407 | |
| 7/8-14 | Standard Torque Specification | 475-485 | 644-658 |
| 1-14 | Bolt-Crankshaft End | 290-310 | 393-420 |
| 1/18-18 | Nut-Cam and Balance Shaft | 300-325 | 407-441 |
| 1/4-28 | Bolt-Blower Drive Coupling to Rotor Gear | 16-18 | 22-24 |
|
7/16-14
|
Bolt-Blower to Block | 55-60 | 75-81 |
| Nut-Fuel Jumper Line-Stl to Inject | 13-17 | 18-23 | |
| 7/16-20 | Nut-Fuel Jumper Line CTD-Injector | 11-13 | 15-18 |
|
9/16-12
|
Bolt-Cylinder Head End 3-53 Alum | 170-180 | 230-244 |
| Bolt-Main Bearing Cap | 120-130 | 163-176 | |
| 9/16-18 | Bolt-Flywheel V53 | 180-190 | 244-258 |
| 5/8-11 | Bolt-Cylinder Head | 190-200 | 258-271 |
Detroit Diesel Series 53 Pipe Plug |
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|
Plug Size (in.)
|
Description
|
Torque Specifications | |
| lb-ft | N-m | ||
| 1/8-27 | Plug-Pipe (3/4 Taper) | 10-12 | 14-16 |
| 1/4-18 | Plug-Pipe (3/4 Taper) | 14-16 | 19-22 |
| 1/4-18 | Plug-Pipe (7/8 Taper) | 14-16 | 19-22 |
| 3/8-18 | Plug-Pipe (3/4 Taper) | 18-22 | 24-30 |
| 3/8-18 | Plug-Pipe (7/8 Taper) | 18-22 | 24-30 |
| 1/2-14 | Plug-Pipe (3/4 Taper) | 23-27 | 31-37 |
| 1/2-14 | Plug-Pipe (7/8 Taper) | 23-27 | 31-37 |
| 3/4-14 | Plug-Pipe (3/4 Taper) | 33-37 | 45-50 |
| 3/4-14 | Plug-Pipe (7/8 Taper) | 33-37 | 45-50 |
| 1-11 1/2 | Plug-Pipe (3/4 Taper) | 75-85 | 102-115 |
| 1 1/4-11 1/2 | Plug-Pipe (3/4 Taper) | 95-105 | 129-142 |
| 1 1/2-11 1/2 | Plug-Pipe (3/4 Taper) | 110-130 | 149-176 |
| 1 1/2-11 1/2 | Plug-Pipe (7/8 Taper) | 110-130 | 149-176 |
| 1/2-20 | Plug-Fuel Pump Relief Valve | 18-22 | 24-30 |
Detroit Diesel Series 53 Stud |
|||
|
Thread Size (in.)
|
Description
|
Torque Specifications | |
| lb-ft | N-m | ||
| 7/16-14 | Stud-Exhaust Manifold | 25-40 | 34-54 |
| 9/16-18 | Stud-Clutch Fork Ball | 65-75 | 88-102 |
Why Buy Detroit Diesel 53 Series Parts from Diesel Pro Power
A Company Built on Decades of Detroit Diesel Expertise
The Detroit Diesel 53 Series—whether 2-53, 3-53, or 4-53—remains a trusted workhorse in marine, industrial, agricultural, and military applications. Supporting engines of this age requires a supplier with deep historical knowledge and hands-on experience. Diesel Pro Power has been specializing in Detroit Diesel two-stroke engines for decades, making us one of the most knowledgeable and reliable sources for 53 Series support worldwide. Our team understands the unique engineering, assembly variations, and common service challenges of these compact yet powerful engines, ensuring customers always receive accurate guidance.
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With more than 40,000 customers across 180 countries, Diesel Pro Power is a globally recognized leader in Detroit Diesel support. Marine operators, industrial equipment owners, fleet managers, and rebuild specialists rely on us because of our proven track record for dependability and precision. When you buy 53 Series parts from Diesel Pro Power, you’re purchasing from a company trusted by professionals who depend on these engines every day for mission-critical operations.
Fast, Dependable Shipping and Real Inventory
Parts for older engines can be difficult to locate, but Diesel Pro Power maintains extensive inventory specifically for the 53 Series. Most orders ship the same day, allowing customers to minimize downtime and avoid long OEM backorders or unreliable suppliers. Our streamlined fulfillment process ensures fast delivery whether you are operating domestically or internationally.
Long-Term Support and Customer Commitment
Diesel Pro Power stands behind every order with responsive, knowledgeable service. We build long-term relationships with our customers by offering professional support, clear communication, and solutions tailored to the demands of Detroit Diesel 53 Series engines.
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