CDI Electronics XT-VT-170-IR XT Series 170A Alternator - Vortec Mount for GM 5.0L/5.7L/6.2L

The CDI Electronics XT-VT-170-IR is an XT Series marine alternator built with a Vortec mount, K6 serpentine pulley, and case ground GM style mounting, making it a direct fit for GM Block (Chevy) 5.0L, 5.7L, and 6.2L marine engines. Rated at 170A output at 12V, this alternator is engineered for vessels with high electrical load demands, delivering up to 110A even at idle speed so house and starting batteries stay charged during low-RPM operation such as trolling or extended anchoring.

The alternator uses custom high speed bearings for extended service life under continuous marine duty, and a dual fan cooling design with a high airflow frame to manage heat during sustained high-output charging. Its compact case package keeps the footprint small for tight engine bay installations while still delivering full-size charging output. The XT-VT-170-IR is built to CDI Electronics' standard of marine-grade reliability as a cost-effective alternative to OEM-supplied charging components.

Specifications

• Brand: CDI Electronics
• Manufacturer Part Number: XT-VT-170-IR
• Amperage: 170 amps
• Voltage: 12 volts
• Idle Output: Up to 110 amps at idle speed
• Mounting Style: Vortec mount
• Pulley Type: K6 serpentine pulley
• Grounding: Case ground, GM style mounting
• Engine Fitment: GM Block (Chevy) 5.0L, 5.7L, 6.2L engines
• Cooling: Dual fan cooling, high airflow frame
• Bearings: Custom high speed bearings
• Material: Plastic housing
• Item Dimensions: 10 x 10 x 9 inches
• Weight: 20 pounds
• UPC: 676205500951

Fitment

• GM Block (Chevy) 5.0L, 5.7L, and 6.2L engines with Vortec mounting

Frequently Asked Questions

What engines does the CDI XT-VT-170-IR alternator fit? The XT-VT-170-IR is designed with a Vortec mount, K6 serpentine pulley, and case ground GM style mounting typical for GM Block (Chevy) 5.0L, 5.7L, and 6.2L engines.

How many amps does this alternator produce? The CDI Electronics XT-VT-170-IR is rated at 170 amps at 12 volts, with up to 110 amps available even at idle speed.

Will this alternator keep up with a high electrical load boat? Yes, delivering up to 110A at idle makes the XT-VT-170-IR well suited to vessels with high electrical load demands, such as those running extensive electronics or accessories while at low RPM.

What kind of pulley does the XT-VT-170-IR use? It uses a K6 serpentine pulley as part of its Vortec mount configuration.

How is the CDI XT-VT-170-IR alternator grounded and mounted? It uses a case ground, GM style mounting arrangement paired with a Vortec mount, matching the factory mounting style on compatible GM Block engines.

What are the dimensions and weight of this alternator? The XT-VT-170-IR measures 10 x 10 x 9 inches and weighs 20 pounds.

What material is the alternator housing made from? The XT-VT-170-IR alternator has a plastic housing.

How does CDI Electronics manage heat buildup on this alternator? The XT-VT-170-IR uses dual fan cooling with a high airflow frame to dissipate heat during sustained high-output charging.

What bearings are used in the XT-VT-170-IR alternator? It is built with custom high speed bearings intended for long service life under marine duty cycles.

Is the XT-VT-170-IR a compact alternator? Yes, the XT-VT-170-IR is built in a small case package while still delivering its full 170A rated output.

What is the UPC for the CDI XT-VT-170-IR alternator? The CDI Electronics XT-VT-170-IR alternator carries UPC 676205500951.