Parts For Detroit Diesel Series 60 12.7 Ltrs for Australia - Connecting Rod Section

Detroit Diesel Series 60 12.7-Liter – Connecting Rod Section

The Detroit Diesel Series 60 12.7-liter engine is one of the most trusted and widely used heavy-duty diesel engines in transportation history. Designed for balance, performance, and longevity, the 12.7L version refined the earlier 11.1L platform by optimizing stroke length, combustion efficiency, and component strength. Among the core components ensuring smooth operation, the connecting rod assembly plays a crucial role in transmitting power from the piston to the crankshaft.

This section of the catalog focuses exclusively on connecting rods, bearings, and bushings engineered for the Series 60 12.7-liter engine. Each part is built to maintain factory specifications, ensuring dependable oil clearance, balanced crankshaft motion, and consistent performance under demanding load conditions.

Detroit Diesel Series 60 Connecting Rod (Rebuilt, 1.70" Bearing Type)

This rebuilt connecting rod is designed for Series 60 12.7-liter engines that use the 1.70-inch connecting rod bearing. It delivers dependable performance for fleets and equipment operators maintaining mid-generation Series 60 configurations.

Key Features:

• Rebuilt and inspected connecting rod for 12.7-liter Series 60 engines.
  
  

• Compatible with 1.70" connecting rod bearings.
  
  

• Constructed to OEM dimensions for proper fit and oiling alignment.
  
  

• Sold with a refundable core deposit.
  
  

When Replacement Is Recommended:

• Noticeable knocking or vibration at idle or under load.
  
  

• Discoloration or surface damage at the big end.
  
  

• Bearing failure or journal scoring.
  
  

Timely replacement of the connecting rod prevents excessive wear on the crankshaft and preserves internal balance across all six cylinders.

Connecting Rod Bearing Set – 1.70" Width, Standard Size

The standard 1.70-inch connecting rod bearing set restores critical oil film thickness and supports the crankshaft during every combustion stroke. These bearings are specifically designed for earlier 12.7L engines using the narrow bearing configuration.

Specifications:

• Standard size, 1.70" width.
  
  

• One large lubrication hole for consistent oil flow.
  
  

• Durable tri-metal construction for extended service life.
  
  

Replacement Signs:

• Low oil pressure or bearing knock.
  
  

• Debris or metal flakes in the oil.
  
  

• Worn or uneven bearing surfaces.
  
  

Replacing rod bearings at regular overhaul intervals maintains lubrication integrity and prevents premature crankshaft damage.

Detroit Diesel Series 60 Connecting Rod (Rebuilt, 1.86" Bearing Type)

This rebuilt connecting rod is designed for Series 60 12.7-liter and 14-liter configurations using the 1.86-inch wide bearing. It offers enhanced load-bearing surface area, ideal for higher-output engines.

Key Features:

• Rebuilt and inspected for correct alignment and balance.
  
  

• Compatible with 1.86" bearing setups.
  
  

• Sold with refundable core deposit.
  
  

• Direct replacement for late-model Series 60 rods.
  
  

When to Replace:

• Worn or overheated rod journals.
  
  

• Persistent oil film loss in one or more cylinders.
  
  

• Engine vibration caused by rod imbalance.
  
  

Installing properly rebuilt connecting rods helps maintain engine smoothness and ensures even compression across all cylinders.

Connecting Rod Bearing – 1.86" Width, Standard

The standard 1.86-inch wide connecting rod bearings are the most common type used in the 12.7-liter Series 60. With two large lubrication holes, these bearings provide excellent oil distribution and wear resistance.

Highlights:

• Standard-width, standard-size design.
  
  

• Dual lubrication holes for enhanced oil delivery.
  
  

• Compatible with rebuilt or original Detroit Diesel connecting rods.
  
  

Replacement Indicators:

• Oil pressure fluctuations.
  
  

• Metallic tapping or knocking from the lower end.
  
  

• Bearing surface wear or pitting.
  
  

Consistent oil flow through the rod bearings ensures long-term durability and protection of the crankshaft journals.

Connecting Rod Bearing – 1.86" Width, Oversize

When the crankshaft journals have been machined or reconditioned, oversize connecting rod bearings (0.254 mm) are required to restore proper clearance.

Features:

• Oversize 0.254 mm for reground crankshafts.
  
  

• Two large lubrication holes for uniform oil flow.
  
  

• Engineered for stable oil film under high load.
  
  

When Replacement Is Required:

• Crankshaft resurfaced during overhaul.
  
  

• Excessive bearing wear on prior standard-size components.
  
  

• Measured out-of-spec bearing clearance.
  
  

Using the correct oversize bearing set ensures proper crankshaft support and reliable lubrication during continuous service.

Detroit Diesel Series 60 Connecting Rod (Rebuilt, Standard Wide Bearing Type)

This rebuilt connecting rod fits the 12.7-liter Series 60 with standard wide bearings, offering robust strength for continuous heavy-duty use. Each rod is rebuilt and inspected to meet Detroit Diesel specifications.

Key Features:

• Rebuilt and inspected for fit and oil passage accuracy.
  
  

• Compatible with standard wide bearings.
  
  

• Designed for engines using 1.86" bearing journals.
  
  

• Sold with refundable core deposit.
  
  

When Replacement Is Necessary:

• Rod knock under load.
  
  

• Visible bearing failure or metal transfer on crank journals.
  
  

• Bent or distorted connecting rods after overheating or hydrolock.
  
  

Proper rod replacement maintains balance and ensures even compression across all cylinders, critical for Series 60 reliability.

Standard Wide Connecting Rod Bearings – 1.86" Width

The standard-size 1.86-inch connecting rod bearings feature two small lubrication holes, a later Series 60 design that improves oil pressure stability while maintaining adequate lubrication.

Specifications:

• Standard width and size.
  
  

• Two-hole lubrication configuration.
  
  

• OEM-equivalent materials for consistent oil control.
  
  

Signs of Wear:

• Oil pressure drop at operating temperature.
  
  

• Uneven bearing wear marks.
  
  

• Crankshaft journal scoring or surface discoloration.
  
  

Regular replacement during scheduled overhauls keeps oil pressure consistent and prevents excessive wear on the rotating assembly.

Connecting Rod Bushing – Detroit Diesel Series 60

The connecting rod bushing forms the precision interface between the piston pin and the upper end of the connecting rod. Replacing worn bushings ensures proper piston alignment and prevents upper-end noise.

Features:

• Machined bronze bushing for accurate piston pin fit.
  
  

• Restores upper-end clearances in Series 60 rods.
  
  

• Compatible with all Series 60 configurations, including 12.7L.
  
  

Replacement Indicators:

• Upper-end ticking noise during acceleration.
  
  

• Loose piston movement or uneven wear on wrist pins.
  
  

• Scoring or discoloration on bushing inner surface.
  
  

A properly fitted bushing ensures quiet operation, stable piston travel, and reduced stress on the wrist pin.

Importance of Connecting Rod Maintenance in the Detroit Diesel 12.7-Liter

In the 12.7-liter Series 60, the connecting rod assembly endures extreme combustion pressures and rotational forces. Over time, these stresses can lead to bearing wear, rod stretch, or oil film breakdown. Replacing or reconditioning these components on schedule ensures the lower end remains balanced, efficient, and quiet.

Maintenance Best Practices:

• Always torque connecting rod bolts to Detroit Diesel specifications.
  
  

• Replace bolts that show any signs of stretch or corrosion.
  
  

• Verify bearing clearance with plastigage or micrometer readings.
  
  

• Use high-quality lubricants during assembly and break-in.
  
  

Routine inspection of connecting rods and bearings during in-frame or full overhauls is key to preventing crankshaft damage and maintaining dependable performance.

Why Buy Your Detroit Diesel Series 60 12.7-Liter Connecting Rod Parts from Diesel Pro Power

When it comes to keeping your Detroit Diesel Series 60 12.7-liter engine performing reliably, choosing the right supplier matters as much as choosing the right part. Diesel Pro Power provides the quality, availability, and service support that professional mechanics, fleet owners, and operators depend on.

Proven Quality

Every connecting rod is rebuilt and inspected for precise fit and dependable performance. Bearings and bushings are manufactured from premium materials designed to withstand the high loads and continuous operation that define Series 60 service environments.

Perfect Fit Every Time

Diesel Pro Power eliminates guesswork by clearly identifying each rod and bearing by width (1.70" or 1.86") and application type. Whether you’re rebuilding a single cylinder or completing a full in-frame overhaul, you’ll find the exact parts your 12.7L engine requires.

Global Availability & Fast Shipping

With an extensive inventory ready to ship worldwide, Diesel Pro Power minimizes downtime for commercial operators. Each order ships promptly and securely—so your Series 60 is back in service faster.

Expertise Built on Experience

Diesel Pro Power has decades of experience supplying Detroit Diesel parts and supporting rebuilders and fleet maintenance programs around the globe. Our knowledgeable staff ensures that every customer gets the correct part the first time.

Trusted by Over 40,000 Customers

More than 40,000 satisfied customers rely on Diesel Pro Power for precision engine components, expert guidance, and unmatched customer service. Our reputation is built on reliability, clarity, and technical accuracy in every product we offer.

Complete Engine Coverage

Beyond connecting rods and bearings, Diesel Pro Power stocks every major Series 60 component—from gasket sets and cylinder heads to injectors, oil pumps, and overhaul kits—allowing you to source everything needed for your rebuild in one place.