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2020 Chevrolet Express 4500

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2020 Express 4500.

The 2020 Chevrolet Express 4500 requires 6.0 quarts of 5W‑40 oil, reflecting its substantial engine capacity. It has recorded a single owner complaint — spanning powertrain, service brakes, and engine — along with two recalls. That complaint count places the 2020 model at the low end of the 2009‑2016 model history, which saw a high of four complaints in 2012 and a low of one in 2009. The early data suggests the 2020 edition is tracking with the series’ most reliable years.

Model year202520242023202120202019

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity6.0 qtOEM · verified
Engine oil type5W-40OEM · verified
Lug nut torque140.0 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 78 · 600 CCA battery, OE oil filter 12690386. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI 78 · 600 CCAOEM · verified
Tire sizeLT245/75R16/E 120/116SOEM · verified
Wheel / rim6.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter12690386 alt 12731742
Engine air filter84612001 alt 84373974
Fuel filter84428486
Spark plug12622441 alt 12680072
Battery88866305 alt 88866306
Front wiper blades15214346
Serpentine belt19210691 alt 12679333
Thermostat89018168 alt 12587397

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length244.1 in
Overall width79.5 in
Overall height81.9 in
Wheelbase155.1 in
Curb weight5505 lb
Track (front / rear)68.1 / 67.7 in
Weight distribution (front / rear)53/47

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 6.0 qt of 5W-40 engine oil, DOT 3 brake fluid. Torque lug nuts to 140 ft-lbs. The firing order is 1-6-5-4-3-2.

Lubricants & capacities

Automatic Transmission Fluid6L90: Dexron VI, 8L90: Dexron HP
Automatic Transmission Fluid Capacity6L90
Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity7.4 qt
Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity6.0 qt
Brake FluidDOT 3
Brake Fluid Capacity2.11 pt

Engine torques

Crankshaft Position (CKP) Sensor Bolt(s)11.0 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)8.0 ft-lbs
Crankshaft Position (CKP) Sensor Bolt(s)18.0 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)18.0 ft-lbs
Crankshaft Position (CKP) Sensor Bolt(s)18.0 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)7.0 ft-lbs
Crankshaft Position (CKP) Sensor Bolt(s)18.0 ft-lbs
Camshaft Position (CMP) Sensor Bolt(s)18.0 ft-lbs

Chassis torques

Differential Fill Plug9.5" Axle: 24.0, 10.5 Axle: 55.0 ft-lbs
Differential drain Plug9.5" Axle: NS, 10.5 Axle: 24.0 ft-lbs
Differential Fill Plug9.5
Differential drain Plug10.5
Driveshaft Flange to TransmissionFront: 30.0; Rear: 18.0 ft-lbs
Leaf Spring to Rear Shackle118.0 ft-lbs
Lug Nuts140.0 ft-lbs
Lug Nuts140 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Cylinder Firing Order1-6-5-4-3-2
Cylinder Firing Order1–8–7–2–6–5–4–3
Cylinder Firing Order1-8-7-2-6-5-4-3
Cylinder Firing Order1-6-5-4-3-2
Curb Idle Speed (No Load)760 rpm
Curb Idle Speed Variance (No Load)760 rpm
Spark Plug ManufacturerAC Delco

Battery & A/C

RefrigerantR134a
Oil GroupPAG
Oil Capacity11.00-12.00 oz
RefrigerantR134a
Oil GroupPAG
Oil Type46
Standard BCI Group Number78
Standard BCI Cranking Performance600 cca

Service checks

Primary Fuel Pump Pressure1885 psi
Key ON Engine OFF (KOEO)50-94
Key ON Engine OFF (KOEO)50-94
Engine Oil Pressure10
Engine Oil Pressure22
Engine Oil Pressure22
Intake Valve LashHydraulic in
Exhaust Valve LashHydraulic in

Brakes

ABS Sensor TorqueFront: 13.0; Rear: 10.3
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Vented Rotor Maximum Scoring DepthFront: 0.059; Rear: 0.059
Variation from Parallelism Thickness VariationFront: 0.001; Rear: 0.001
Maximum Rotor RunoutFront: 0.005; Rear: 0.005

Multi-step torque procedures OEM · verified

Leaf Spring to Axle (U-bolts) — tightening sequence 1 stages
1103.0 ft. lbs., Step 2: 175°-185°103 ft. lbs
Leaf Spring to Chassis Bracket — tightening sequence 1 stages
1103.0 ft. lbs., Step 2: 175°-185°103 ft. lbs
Steering Track (Rod End) Bolts — tightening sequence 1 stages
160°-75°
Camshaft Sprocket and/or Gear Bolt(s) — tightening sequence 1 stages
148.0 ft. lbs., Step 2: 90°48 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 40°22 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 85°15 ft. lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 85°15 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
124.0
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1111.0 ft. lbs. Step 2: Loosen 360° Step 3: 59.0 ft. lbs. Step 4: 200°111 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1111.0 ft. lbs. Step 2: Loosen 360° Step 3: 59.0 ft. lbs. Step 4: 125°111 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
1Use current crankshaft bolt and tighten 240.0 ft. lbs., Step 2: Remove crankshaft bolt and discard., Step 3: Check for a recess of .094-.176" of the crankshaft into the balancer bore., Step 4: Use replacement bolt and tighten to 110.0 ft. lbs., Step 5: Loosen 360°., Step 6: 59.0 ft. lbs., Step 7: Balancer Bolt with Flanged Head 125°., Step 8: Balancer Bolt with rotating washer 200°.240 ft. lbs
Cylinder Head — tightening sequence 1 stages
122.0 ft. lbs. Step 2: 110° Step 3: 110° Step 4: 110°22 ft. lbs
Cylinder Head — tightening sequence 1 stages
159.0 ft. lbs. Step 2: 90° Step 3: 60°59 ft. lbs
Cylinder Head — tightening sequence 1 stages
159.0 ft. lbs., Step 2: 90°, Step 3: 60°59 ft. lbs
Cylinder Head — tightening sequence 1 stages
1M8 Bolts22 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
137.0 ft. lbs. Step 2: 90° Step 3: 18.0 ft. lbs. Step 4: 60°37 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
111.0 ft. lbs. Step 2: 22.0 ft. lbs. Step 3: 45°11 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
111.0 ft. lbs., Step 2: 22.0 ft. lbs., Step 3: 45°11 ft. lbs
Flex or Driveplate Bolts — tightening sequence 1 stages
115.0 ft. lbs., Step 2: 37.0 ft. lbs., Step 3: 74.015 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
137.0 ft. lbs. Step 2: 90° Step 3: 18.0 ft. lbs. Step 4: 60°37 ft. lbs
Engine Flywheel Bolts — tightening sequence 1 stages
111.0 ft. lbs. Step 2: 22.0 ft. lbs. Step 3: 45°11 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
120.0 ft. lbs. Step 2: Back off 180° Step 3: 17.020 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 1 stages
14.0 ft. lbs. Step 2: 7.04 ft. lbs
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages
111.0 ft. lbs. Step 2: 15.011 ft. lbs
Intake Manifold to Engine Bolts — tightening sequence 2 stages
13.6 ft. lbs.3.6 ft. lbs
27.4
Intake Manifold to Engine Bolts — tightening sequence 2 stages
13.7 ft. lbs.3.7 ft. lbs
27.4
Exhaust Manifold to Cylinder Head Bolts — tightening sequence 1 stages

Prep Alternate tightening all fasteners evenly. Start at the center and work outwards. Step 1: 11.0 ft. lbs.

215.0
Main Bearings — tightening sequence 1 stages
137.0 ft. lbs. Step 2: 90°37 ft. lbs
Main Bearings — tightening sequence 1 stages
115.0 ft. lbs. Step 2: 110° Outer cap bolts Step 1: 15.0 ft. lbs. Step 2: 80° Side cap bolts Step 1: 18.0 ft. lbs. Step 2: 60°15 ft. lbs
Engine Valve Cover Bolts — tightening sequence 1 stages
19.0 ft. lbs. Step 2: 18.09 ft. lbs

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the spark plugs every 97,500 mi.

At 6,000 miWheel Lug Nut (torque)
Every 7,500 miAccelerator Pedal (inspect) · Body Latches, Locks & Hinges (lubricate) · Brake Shift Interlock Solenoid (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Coolant System (inspect fluid level)
Every 15,000 miWindshield Wiper Blade (replace)
Every 30,000 miFuel Filter (replace)
Every 45,000 miEngine Air Filter Element (replace) · Fuel Evaporative Emission Control System (inspect)
Every 97,500 miSpark Plug Wires (inspect) · Spark Plugs (replace)
At 150,000 miAccessory Drive Belt (inspect) · Timing Belt (replace)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The Chevrolet Express 4500 has maintained a stable federal record across its generation, with annual complaints ranging from only one to four units between 2009 and 2016. Throughout that period, the record shows zero recalls and zero investigations. The 2020 model year continues this low-volume trend with just one reported complaint, which involves the power train, service brakes, and engine. The data does not specify a root cause for this issue, though there are zero reported crash or fire complaints for the year. Based on this minimal complaint volume and the historical absence of recalls, the 2020 model is a good year to buy.

2
Open recalls
NHTSA campaigns
690
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
1
Owner complaints
0 involved a crash · 0 a fire
Owner complaints by model year NHTSA · this generation & adjacent
’09’12’14’16

Owner complaints filed with NHTSA, by component

All 1 complaints on record, top 1 components.

Power Train,Service Brakes,Engine1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

25V390000Service Brakes, Hydraulic:Brake Fluid Low Warning:Switch/Sensor/FloatReported 12/06/2025

General Motors (GM) is recalling certain 2019-2024 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD vehicles. The brake pressure sensor assembly may leak brake fluid into the brake pressure switch and cause a… Remedy: Owners are advised to park outside and away from structures until the recall repair is complete. Dealers will replace the brake pressure switch wire harness, free of charge. Owner…

25V768000Service Brakes, Hydraulic:Power AssistReported 06/11/2025

General Motors, LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado Medium Duty 4500HD, 5500HD, and 6500HD vehicles. These vehicles were remedied under NHTSA Recall 25V390 with a brake jumper wire harness that… Remedy: Dealers will remove the installed wire harness, apply protective tape, and reinstall the wire harness, free of charge. Owner notification letters are planned to be mailed December…

Technical service bulletins NHTSA · verified

Showing 5 of 690 bulletins on record with NHTSA.

BulletinDateComponentSummary
PIP61082026-04-14Unknown Or OtherThis PI instructs technicians to inspect the ground plane on MD Silverado vehicles with…
PIT3271Q2026-04-01Unknown Or OtherThis preliminary information communicates information about how to determine if a wheel…
PIP61042026-03-09Unknown Or OtherThis Preliminary information communicates the steps on how to save a GDS2 Session Log and…
PIP4902V2026-03-09Unknown Or OtherThis preliminary information advises a dealer on how to email GDS2 session logs into…
PIT6425D2026-03-02Unknown Or OtherThis Preliminary information communicates to the field on how to diagnosis a GPS issue…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific Express 4500. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Group 78 batteryVehicles taking 6.0 qtEngine oil filter 12690386Engine air filter 84612001Fuel filter 84428486Spark plug 12622441

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBsOBD-II trouble codesTorque specificationsMaintenance schedulesFluid capacities & specs

Frequently asked

How much oil does the 2020 Express 4500 take?

6.0 qt of Synthetic 5W-40 meeting Dexos 2 Standard, per the factory manual.

Does the 2020 Express 4500 have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.