UPM45/50 Spring Bracket

Name: GameMaster Athletic I Louisville Slugger Training Aids UPM45/50 Spring Bracket - UPM45/50 Spring Bracket
Brand: GameMaster Athletic I Louisville Slugger Training Aids
SKU: 40356981309601
Price: 15.99 USD
Availability: InStock

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$15.99

Quantity

Color

Black

Quantity

Description

The spring bracket anchors the power spring to the frame, holding it under load on every throw. A genuine replacement restores a secure mount so your machine delivers full, consistent velocity.
Compatibility: Fits both the Blue Flame (UPM45) and Black Flame (UPM50) pitching machines.
Genuine Louisville Slugger replacement part. Free shippin...

Delivery & Returns

Returns accepted within 14 days

Exclusions may apply. See full policy

GameMaster Athletic I Louisville Slugger Training Aids

4.8 (77)

Product description loading

This is the product description text that will appear here.

Louisville Slugger UPM45/50 replacement spring for Blue Flame and Black Flame pitching machines

GameMaster Athletic I Louisville Slugger Training Aids

Blue/Black Flame Replacement Spring

(4)

$31.99

Louisville Slugger Black Flame manual pitching machine for baseball and softball batting practice

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Black Flame Pitching Machine

(1)

$169.99

TheHockeyShop.com

Road Warrior Mini Street Hockey Youth Goalie Set White / Blue

CA$49.99

Louisville Slugger Black Flame front stabilizer bar with end caps replacement for Black Flame UPM50 pitching machine

GameMaster Athletic I Louisville Slugger Training Aids

Black Flame Front Stabilizer Bar & End Caps

$35.99

Louisville Slugger Blue Flame Pro manual pitching machine for baseball and softball batting practice

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Blue Flame Pro Pitching Machine — Manual, 30–58 MPH, No Electricity | Baseball & Softball

(2)

$199.99

Blitzball 3-Ball Pack featuring bright yellow balls for ultimate backyard play and knuckleball throwing

GameMaster Athletic I Louisville Slugger Training Aids

Blitzball 3-Ball Pack — Curveball Plastic Baseballs for Backyard Pitching

(1)

$14.99

GameMaster Athletic I Louisville Slugger Training Aids

UPM45 Power Lever

$29.99

Baseball5 Game Kit complete set with rubber game balls bases and rules for urban street baseball

20% off

GameMaster Athletic I Louisville Slugger Training Aids

Baseball5 Game Kit — Complete No-Bat, No-Glove Street Baseball Set with Balls, Bases & Zone Marker

$39.99$49.99

ProVelocity Sports

4.7

(777)

Smash It Sports CA

Louisville Slugger Omaha Stick Pack - WB571750

CA$79.99

17% off

BaseballExpress.com

Louisville Slugger 2026 Supra 2-Piece Composite -8 USSSA 2-3/4 Barrel Baseball Bat

(1)

$329.97$399.95

Colorful blue sprinkle SWAX ball with vibrant patterns for fun and active play

GameMaster Athletic I Louisville Slugger Training Aids

Blue Sprinkle SWAX Training Baseball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

$9.99

40% off

Sports Town Group

2024 Meta 2 3/4" Barrel USSSA Baseball Bat (-5)

$227.00$378.00

Sports Town Group

Louisville LAUNCH 650 ULTIMATE DISTANCE (DZ)

$68.00

GameMaster Athletic I Louisville Slugger Training Aids

UPM45/50 Ground Spikes

(4)

$22.99

GameMaster Athletic I Louisville Slugger Training Aids

Black Flame Square Throwing Arm Attachment

(1)

$15.99

TheHockeyShop.com

Road Warrior Mini Street Hockey Youth Goalie Set White / Red

CA$69.99

Louisville Slugger Black Flame UPM50 release lever OEM replacement part for Black Flame pitching machine

GameMaster Athletic I Louisville Slugger Training Aids

Black Flame Release Lever

(1)

$24.99

KITTED

4.7

(579)

SpinGrip Softball for Pitchers glove gripping softball

Louisville Slugger Black Flame UPM50 power lever OEM replacement part for Black Flame pitching machine

GameMaster Athletic I Louisville Slugger Training Aids

Black Flame Power Lever

$29.99

Louisville Slugger Soft-Toss System automatic solo batting trainer for baseball and softball

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Soft-Toss System — Automatic Solo Baseball & Softball Batting Trainer

(3)

$139.99

USA Baseball Blitzball 3-pack set with red and white balls for backyard play

GameMaster Athletic I Louisville Slugger Training Aids

USA Baseball Blitzball 3-Pack — Official Curveball Baseballs, Made in USA

(1)

$14.99

Anytime Baseball Supply

Louisville Slugger Blue Flame Pitching Machine - UPM45

$229.99

Big League Sports

Louisville Slugger Blue Flame Pitching Machine 60 MPH

CA$319.99

Louisville Slugger Soft-Toss Pitching Machine / Batting Tee

25% off

Anytime Baseball Supply

Louisville Slugger Soft-Toss Pitching Machine / Batting Tee

$149.99$199.99

Stars and Stripes SWAX training baseball soft practice ball with patriotic design

GameMaster Athletic I Louisville Slugger Training Aids

Stars & Stripes SWAX Training Baseball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

(2)

$9.99

ProRollers Rolled Bats & Game Ready Gloves

2026 Louisville Slugger Select PWR -8 2 5/8" USA Baseball Bat Custom Broken In Game Ready

$389.99

71% off

Prime Sports

Louisville Slugger 2025 Meta Prime -5 USSSA Baseball Bat

$99.99$349.95

ThrowMo

4.8

(179)

GameMaster Athletic I Louisville Slugger Training Aids

UPM45/50 Nylon Support Block With Triangular Knob

(3)

$14.99

Louisville Slugger Black Flame UPM50 ball shield OEM replacement for Black Flame pitching machine

GameMaster Athletic I Louisville Slugger Training Aids

Black Flame Ball Shield

$21.99

Louisville Slugger Power Grip bat grip for added bat speed and sting relief

23% off

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Power Grip — Bat Grip Trainer for Faster Bat Speed & Sting Relief | Baseball & Softball

$9.99$12.99

Louisville Slugger Portable Practice Sock Net 5' x 7' baseball and softball hitting net set up on a field

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Portable Practice Sock Net — Baseball & Softball Training

$69.99

Plan de Match

RESSORT DE REMPLACEMENT LSL60112

$26.00

Louisville Slugger Blue Flame Pro Training Bundle with pitching machine, Flex protective screen and portable ball caddy

20% off

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Blue Flame Pro Training Bundle – Pitching Machine + Flex Net Screen + Ball Caddy | Complete Batting Practice Set

$255.98$319.97

Sports Town Group

Power Spring w/ 2 Rubber Strips and Bolts

$31.00

Plan de Match

BANDES DE CAOUTCHOUC (2X) LSL60144

$6.00

Louisville Slugger PRIME STICK PACK ROYAL WB5711003 (6672229859492)

Exclusive offer available

Slugger Slow Pitch

Louisville Slugger Stick Pack 2.0 - Prime

(3)

$129.95

Blitzball StrikeZone Target set up in a backyard for pitching and hitting practice

GameMaster Athletic I Louisville Slugger Training Aids

Blitzball StrikeZone Target — Official Strike Zone for Backyard Baseball & Pitching Practice

(1)

$69.99

Road Warrior Street Hockey Balls - 15-Pack - Orange for outdoor street hockey games and practice b

GameMaster Athletic I Louisville Slugger Training Aids

Road Warrior Street Hockey Balls — Orange 15-Pack | Low-Bounce Outdoor Road Hockey

$44.99

Rope Bat

4.7

(473)

GameMaster Athletic I Louisville Slugger Training Aids

UPM45/50 Rubber Strips (2)

(1)

$10.99

GameMaster Athletic I Louisville Slugger Training Aids

UPM45/50 Release Lever Grip

$14.99

Backyard golf training

Practice nets, hitting mats, and putting mats.

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Soft-Toss System Replacement Motor

(2)

$31.99

Louisville Slugger Glove Shield wrist and palm protector attached to a baseball glove

25% off

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Glove Shield — Bad-Hop Wrist & Palm Protection for Infielders & Catchers | Baseball & Softball

$14.99$19.99

Sports Town Group

Rubber Strips (set of 2)

$10.00

GameMaster Protective Sports Mouthguard in Orange for Enhanced Mouth Protection During Sports

GameMaster Athletic I Louisville Slugger Training Aids

GameMaster Youth & Adult Sports Mouthguard — Braces-Compatible, $10K Dental Warranty

$9.99

Plan de Match

PIN DE TIRAGE LSL60131

$3.00

Baseball 360

Louisville UPM 50 Black Flame Pitching Machine LSL60222

$349.99

17% off

BaseballExpress.com

Louisville Slugger 2026 Supra 2-Piece Composite -5 USSSA 2-3/4" Barrel Baseball Bat

(1)

$329.97$399.95

Pink Swax training softball designed for effective practice and skill development

GameMaster Athletic I Louisville Slugger Training Aids

Pink SWAX Training Softball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

$13.49

ProRollers Rolled Bats & Game Ready Gloves

2026 Louisville Slugger SUPRA -5 2 3/4" USSSA Baseball Bat Custom Game Ready

$519.99

Louisville Baseball Umpire Pants DRA908C - Sportco

Sportco Source For Sports

Louisville Baseball Umpire Combo Pants DRA908C

CA$69.99

Louisville Slugger UPM45/50 micro adjustment knob replacement for Blue Flame and Black Flame pitching machines

GameMaster Athletic I Louisville Slugger Training Aids

UPM45/50 Micro Adjustment With Triangular Knob

(7)

$13.99

GameMaster Athletic I Louisville Slugger Training Aids

UPM45/50 Base Tube end caps

$14.99

GameMaster Athletic I Louisville Slugger Training Aids

Blue Flame Pro Throwing Arm

(1)

$21.99

Louisville Slugger Blue Flame manual pitching machine for baseball and softball batting practice

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger Blue Flame Pitching Machine — Manual, No Electricity | Baseball & Softball

(2)

$159.99

GameMaster Athletic I Louisville Slugger Training Aids

Black Flame Base Tube & With End Cap

$39.99

Sports Town Group

Set of Spikes (Washer, Spacer, Spikes)

$27.00

Rock climbing essentials

Shoes, apparel, and chalk systems.

Sports Town Group

2 1/4" Knob - Universal

$12.00

Sports Town Group

Micro Adjustment With Triangular Knob - Universal

$16.00

38% off

Sportco Source For Sports

Louisville Meta Baseball bat 23/4 -5 WBL2846010

CA$249.99CA$399.99

Pink Sprinkle SWAX training ball designed for enhanced grip and practice fun

GameMaster Athletic I Louisville Slugger Training Aids

Pink Sprinkle SWAX Training Baseball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

$9.99

63% off

BaseballExpress.com

Louisville Slugger 2024 Meta Limited Edition -5 Baseball USSSA Bat

$149.97$399.95

Sports Town Group

105L Softball Ball (DZ)

$61.00

GameMaster Athletic I Louisville Slugger Training Aids

Blue Flame Pro Replacement Spring

$31.99

GameMaster Athletic I Louisville Slugger Training Aids

UPM45 Release Lever

$24.99

Louisville Slugger UPM45/50 2-1/4 inch replacement knob for Blue Flame and Black Flame pitching machines

GameMaster Athletic I Louisville Slugger Training Aids

UPM45/50 2 1/4 inch Knob

(4)

$15.99

Louisville Slugger XBALL grip strength and recovery trainer product shot

GameMaster Athletic I Louisville Slugger Training Aids

Louisville Slugger XBALL Grip Strength & Recovery Trainer | Hand & Forearm Strengthener for Baseball, Softball & All Athletes

(1)

$39.99

Gamemaster Instructoswing batting tee front view with adjustable height for baseball and softball swing training

GameMaster Athletic I Louisville Slugger Training Aids

GameMaster Baseball & Softball Swing Trainer — Fully Adjustable Batting Tee for Swing Mechanics & All-Field Hitting

$179.99

Home Run Sports

Louisville Power Spring w/ 2 Rubber Strips and Bolt - Universal

CA$34.99

AXIS Axcelerator Training Bat in sleek black design with a comfortable grip for effective practice

30% off

GameMaster Athletic I Louisville Slugger Training Aids

AXIS Axcelerator Training Bat

$104.99$149.99

Plan de Match

ENSEMBLE DE PIQUET (WASHER, SPACER, SPIKES) LSL60133

$28.00

Smash It Sports CA

Louisville Slugger UPM 50 Black Flame Pitching Machine - LSL60222

CA$349.99

Baseball 360

Louisville LSSB240L EA

$9.99

Post-workout recovery

Wraps, compression sleeves, and foam rollers.

Sports Town Group

247 Softball Ball (DZ)

$72.00

30% off

Sports Town Group

Meta 2 3/4 Barrel USSSA Baseball Bat (-10)

$265.00$378.00

UPM45/50 Spring Bracket

Delivery & Returns

GameMaster Athletic I Louisville Slugger Training Aids

You might also like

Blue/Black Flame Replacement Spring

Louisville Slugger Black Flame Pitching Machine

Road Warrior Mini Street Hockey Youth Goalie Set White / Blue

Black Flame Front Stabilizer Bar & End Caps

Louisville Slugger Blue Flame Pro Pitching Machine — Manual, 30–58 MPH, No Electricity | Baseball & Softball

Blitzball 3-Ball Pack — Curveball Plastic Baseballs for Backyard Pitching

UPM45 Power Lever

Baseball5 Game Kit — Complete No-Bat, No-Glove Street Baseball Set with Balls, Bases & Zone Marker

ProVelocity Sports

Louisville Slugger Omaha Stick Pack - WB571750

Louisville Slugger 2026 Supra 2-Piece Composite -8 USSSA 2-3/4 Barrel Baseball Bat

Blue Sprinkle SWAX Training Baseball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

2024 Meta 2 3/4" Barrel USSSA Baseball Bat (-5)

Louisville LAUNCH 650 ULTIMATE DISTANCE (DZ)

UPM45/50 Ground Spikes

Black Flame Square Throwing Arm Attachment

Road Warrior Mini Street Hockey Youth Goalie Set White / Red

Black Flame Release Lever

KITTED

Black Flame Power Lever

Louisville Slugger Soft-Toss System — Automatic Solo Baseball & Softball Batting Trainer

USA Baseball Blitzball 3-Pack — Official Curveball Baseballs, Made in USA

Louisville Slugger Blue Flame Pitching Machine - UPM45

Louisville Slugger Blue Flame Pitching Machine 60 MPH

Louisville Slugger Soft-Toss Pitching Machine / Batting Tee

Stars & Stripes SWAX Training Baseball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

2026 Louisville Slugger Select PWR -8 2 5/8" USA Baseball Bat Custom Broken In Game Ready

Louisville Slugger 2025 Meta Prime -5 USSSA Baseball Bat

ThrowMo

UPM45/50 Nylon Support Block With Triangular Knob

Black Flame Ball Shield

Louisville Slugger Power Grip — Bat Grip Trainer for Faster Bat Speed & Sting Relief | Baseball & Softball

Louisville Slugger Portable Practice Sock Net — Baseball & Softball Training

RESSORT DE REMPLACEMENT LSL60112

Louisville Slugger Blue Flame Pro Training Bundle – Pitching Machine + Flex Net Screen + Ball Caddy | Complete Batting Practice Set

Power Spring w/ 2 Rubber Strips and Bolts

BANDES DE CAOUTCHOUC (2X) LSL60144

Louisville Slugger Stick Pack 2.0 - Prime

Blitzball StrikeZone Target — Official Strike Zone for Backyard Baseball & Pitching Practice

Road Warrior Street Hockey Balls — Orange 15-Pack | Low-Bounce Outdoor Road Hockey

Rope Bat

UPM45/50 Rubber Strips (2)

UPM45/50 Release Lever Grip

Louisville Slugger Soft-Toss System Replacement Motor

Louisville Slugger Glove Shield — Bad-Hop Wrist & Palm Protection for Infielders & Catchers | Baseball & Softball

Rubber Strips (set of 2)

GameMaster Youth & Adult Sports Mouthguard — Braces-Compatible, $10K Dental Warranty

PIN DE TIRAGE LSL60131

Louisville UPM 50 Black Flame Pitching Machine LSL60222

Louisville Slugger 2026 Supra 2-Piece Composite -5 USSSA 2-3/4" Barrel Baseball Bat

Pink SWAX Training Softball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

2026 Louisville Slugger SUPRA -5 2 3/4" USSSA Baseball Bat Custom Game Ready

Louisville Baseball Umpire Combo Pants DRA908C

UPM45/50 Micro Adjustment With Triangular Knob

UPM45/50 Base Tube end caps

Blue Flame Pro Throwing Arm

Louisville Slugger Blue Flame Pitching Machine — Manual, No Electricity | Baseball & Softball

Black Flame Base Tube & With End Cap

Set of Spikes (Washer, Spacer, Spikes)

2 1/4" Knob - Universal

Micro Adjustment With Triangular Knob - Universal

Louisville Meta Baseball bat 23/4 -5 WBL2846010

Pink Sprinkle SWAX Training Baseball — Soft Practice Ball with Regulation Weight for Indoor & Outdoor Drills

Louisville Slugger 2024 Meta Limited Edition -5 Baseball USSSA Bat

105L Softball Ball (DZ)

Blue Flame Pro Replacement Spring

UPM45 Release Lever

UPM45/50 2 1/4 inch Knob

Louisville Slugger XBALL Grip Strength & Recovery Trainer | Hand & Forearm Strengthener for Baseball, Softball & All Athletes

GameMaster Baseball & Softball Swing Trainer — Fully Adjustable Batting Tee for Swing Mechanics & All-Field Hitting

Louisville Power Spring w/ 2 Rubber Strips and Bolt - Universal

AXIS Axcelerator Training Bat

ENSEMBLE DE PIQUET (WASHER, SPACER, SPIKES) LSL60133

Louisville Slugger UPM 50 Black Flame Pitching Machine - LSL60222

Louisville LSSB240L EA

247 Softball Ball (DZ)