
Racing Oil Pump GM LS Gen III and Gen IV, High-Volume
Moroso 22121
Features:
- Includes (1) 10% higher pressure bypass spring for vehicles equipped with Accumulators, oil coolers, and/or remote oil filters
- 33% volume increase over the stock oil pump
- Fits with the stock timing cover
- Works with Moroso or aftermarket oil pans
Note:
- Not suitable with engines that have Active Fuel Management (AFM)
Items You Need

JEGS
Timing Cover Gasket Set for 1997-2013 GM LS Engines
Part Number : 555-210866

JEGS
Timing Cover Alignment Tool for GM LS-Based Engines
Part Number : 555-50337

JEGS
Timing Cover Alignment Tool for GM LS-Based Engines
Part Number : 555-50336
![Harmonic Balancer Bolt for GM LS1/LS2/LS6/L92 Engines [6-Point Hex Head]](https://www.jegs.com/images/mini_200/500/555/555-82805.jpg)
JEGS
Harmonic Balancer Bolt for GM LS1/LS2/LS6/L92 Engines [6-Point Hex Head]
Part Number : 555-82805

JEGS
LS Oil Pump Priming Socket for 1999-2015 GM LS Engines
Part Number : 555-23520
![1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]](https://www.jegs.com/images/mini_200/500/555/555-m200db.jpg)
JEGS
1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]
Part Number : 555-M200DB
![1-Ton Automotive Shop Crane [Boom Operating Range: 34 in. to 45 in.]](https://www.jegs.com/images/mini_200/500/555/555-81044k.jpg)
JEGS
1-Ton Automotive Shop Crane [Boom Operating Range: 34 in. to 45 in.]
Part Number : 555-81044K

JEGS
Bucket Top Parts Washer Fits Most Standard 5-Gallon Plastic Buckets
Part Number : 555-81340
![Industrial Strength Cleaner and Degreaser [1 Gallon]](https://www.jegs.com/images/mini_200/500/555/555-72302.jpg)
JEGS
Industrial Strength Cleaner and Degreaser [1 Gallon]
Part Number : 555-72302

JEGS
Bucket Top Parts Washer Fits Most Standard 5-Gallon Plastic Buckets
Part Number : 555-81340
![Industrial Strength Cleaner and Degreaser [1 Gallon]](https://www.jegs.com/images/mini_200/500/555/555-72302.jpg)
JEGS
Industrial Strength Cleaner and Degreaser [1 Gallon]
Part Number : 555-72302

JEGS
Thread Sealing Tape 1/2 in. x 43 ft.
Part Number : 555-75055

JEGS
Thread Sealant 1/2 oz Tube
Part Number : 555-28011
![Pre-Lube Engine Oiler [2-Gallon Stainless Steel Tank]](https://www.jegs.com/images/mini_200/500/555/555-23550.jpg)
JEGS
Pre-Lube Engine Oiler [2-Gallon Stainless Steel Tank]
Part Number : 555-23550

JEGS
Timing Cover Gasket Set for 1997-2013 GM LS Engines
Part Number : 555-210866

JEGS
Timing Cover Alignment Tool for GM LS-Based Engines
Part Number : 555-50337

JEGS
Timing Cover Alignment Tool for GM LS-Based Engines
Part Number : 555-50336
![Harmonic Balancer Bolt for GM LS1/LS2/LS6/L92 Engines [6-Point Hex Head]](https://www.jegs.com/images/mini_200/500/555/555-82805.jpg)
JEGS
Harmonic Balancer Bolt for GM LS1/LS2/LS6/L92 Engines [6-Point Hex Head]
Part Number : 555-82805
![Oil Pump & Pickup Bolt Set [1997-2014 GM LS Engine]](https://www.jegs.com/images/mini_200/300/335/335-551725.jpg)
ICT BILLET
Oil Pump & Pickup Bolt Set [1997-2014 GM LS Engine]
Part Number : 335-551725
![GM LS Timing Cover Bolt Kit [Black Phosphate]](https://www.jegs.com/images/mini_200/500/555/555-83352.jpg)
JEGS
GM LS Timing Cover Bolt Kit [Black Phosphate]
Part Number : 555-83352

JEGS
One-Piece Oil Pan Gasket for LS-Series Engines
Part Number : 555-210890

MELLING
M29500 Oil Pump Pickup Tube Bracket GM LS
Part Number : 689-M29500

JEGS
Oil Pump Pickup Tube for GM LS Series Engines
Part Number : 555-50247

JEGS
LS Oil Pump Priming Socket for 1999-2015 GM LS Engines
Part Number : 555-23520
![1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]](https://www.jegs.com/images/mini_200/500/555/555-m200db.jpg)
JEGS
1/2 in. Drive Torque Wrench [10 to 150 ft. lbs.]
Part Number : 555-M200DB
![Round Magnetic Parts Tray [5 1/2 in. Round]](https://www.jegs.com/images/mini_200/500/555/555-80080.jpg)
JEGS
Round Magnetic Parts Tray [5 1/2 in. Round]
Part Number : 555-80080
![1-Ton Automotive Shop Crane [Boom Operating Range: 34 in. to 45 in.]](https://www.jegs.com/images/mini_200/500/555/555-81044k.jpg)
JEGS
1-Ton Automotive Shop Crane [Boom Operating Range: 34 in. to 45 in.]
Part Number : 555-81044K
![Engine Load Leveler [1,250 lb.]](https://www.jegs.com/images/mini_200/500/555/555-80048.jpg)
JEGS
Engine Load Leveler [1,250 lb.]
Part Number : 555-80048
![Engine Sling [1000 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-81378.jpg)
JEGS
Engine Sling [1000 lb. Capacity]
Part Number : 555-81378

JEGS
Bucket Top Parts Washer Fits Most Standard 5-Gallon Plastic Buckets
Part Number : 555-81340
![Industrial Strength Cleaner and Degreaser [1 Gallon]](https://www.jegs.com/images/mini_200/500/555/555-72302.jpg)
JEGS
Industrial Strength Cleaner and Degreaser [1 Gallon]
Part Number : 555-72302

JEGS
Thread Sealing Tape 1/2 in. x 43 ft.
Part Number : 555-75055

JEGS
Thread Sealant 1/2 oz Tube
Part Number : 555-28011
![Pre-Lube Engine Oiler [2-Gallon Stainless Steel Tank]](https://www.jegs.com/images/mini_200/500/555/555-23550.jpg)
JEGS
Pre-Lube Engine Oiler [2-Gallon Stainless Steel Tank]
Part Number : 555-23550

JEGS
Timing Cover Gasket Set for 1997-2013 GM LS Engines
Part Number : 555-210866

JEGS
Timing Cover Alignment Tool for GM LS-Based Engines
Part Number : 555-50337

JEGS
Timing Cover Alignment Tool for GM LS-Based Engines
Part Number : 555-50336
⚠️ Warning
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.
Electrical Cords
WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.
