2021 Subaru Ascent BaseFACTORY OEM SERVICE PROCEDURE

General Information & Specifications: Specifications: Ascent: Electrical

Model 2.4 L DOHC turbo
Ignition timing BTDC/{r/min} 0°±10°/700
Spark plug Manufacturer and type NGK: SILKFR8A6
Generator Voltage and output 12 V - 190 A
Battery Type 75D23L
Nominal capacity 5HR: 52 Ah [25Β°C (77Β°F)]
Nominal voltage 12 V
CCA 530 A
BCI group number(1) 35
(1) Use the information about the battery size as a reference. This information shall not be guaranteed by SUBARU CORPORATION.
Chapter Navigation
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.