Skip to main content
FallHalloweenPetLawn & GardenTruck & AutomotiveClothingPoultryHeating & CoolingHorseSporting GoodsOutdoor Power EquipmentFencing & GatesLivestockOutdoor LivingPet & Animal PharmacyToolsHome ImprovementFarm & RanchBoots & ShoesTrailers & TowingHome Decor & FurnitureWild Birds & WildlifeToysGift CardsServices Propane RefillTrailer RentalGarden CenterFeed CenterSame Day DeliveryPetVet ClinicPet WashGrooming at PetsenseDog Training at PetsenseTractor Supply RxPet InsuranceWag!

"Savings and Offers"

Weekly AdSaleClearance

"More Options"

Weekly AdWhat's NewTractor Supply AppEarn Rewards with Neighbor's ClubHometown HeroesLife Out Here BlogTSC Exclusive BrandsTop BrandsClearance ItemsBattery FinderOutdoor Power Equipment Parts FinderHitch Finder

Spend $49.99 to unlock Free Delivery on most orders

|
Learn More
Order statusTSC Credit CardsWhat’s newPetsenseWeekly Ad
​

Sign In / Enroll

Get rewarded!

​
Menu

Search

Home

Sign In

Cart
5.0
(1)
5.0 out of 5 stars. 1 review
A woman outside with a dog
A woman outside with a dog
  1. Home
  2. /
  3. Trailers & Towing
  4. /
  5. Hitches & Ball Mounts
  6. /
  7. Trailer Hitch Accessories
  8. /
  9. 5th Wheel Accessories
  10. /

  11. Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.

  1. Home
  2. /
  4. /
  5. 5th Wheel Accessories

Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.

Shop all Buyers Products

  • Limited Time Deal

Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.

Item # 128305799

Buyers Products Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.
Buyers Products Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.
$98.99

Sale

Was$109.99

Save $11.00

Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Shop all Buyers Products

  • Limited Time Deal

Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.

Item # 128305799

Buyers Products Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.
Buyers Products Buyers Products Weld-On Forged SAE Trailer King Pins with 3/8 in. Bolster Plate, 2 in.

$98.99

Sale

Was$109.99

Save $11.00

financeCard Logo
New Cardmembers earn a $20 Reward‡ with qualifying purchase of $20 or more plus earn 5% in Rewards+ on this purchase. Valid through 8/9/26.

This item is available online only

Delivery to

Free standard delivery on online footwear & Clothing purchases of $49 and over.

​
Neighbor's Club logo
Neighbor’s Club Members earn points with purchases.

Sign in or Join Now

Trailer King Pins from Buyers Products provide strength and reliability in coupling your fifth wheel. They are forged from AISI 8630 steel and heat-treated to maintain a hardness of 302-363 BHN and 150,000 PSI in ultimate strength. They're available in several weldable bolster plate thicknesses. An 8 hole bolt-on version is also available.

  • Strong forged steel construction.
  • Heat-treated for toughness.
  • All king pins are 100% inspected and tested.
  • Made in the USA.
BrandBuyers Products
Country of OriginMade in USA
5th Wheel Accessory TypePins
Make/Model CompatibilityUniversal
Package Quantity1
Primary ColorBlack
Primary MaterialSteel
Product Height4.25 in.
Product Length8 in.
Product Weight13 lb.
Product Width8 in.
Warranty1 Year
Manufacturer Part NumberKP20038
No questions have been asked about this product.

No questions have been asked about this product.

Q&As

No questions have been asked about this product.

No questions have been asked about this product.

Similar Items

  1. Buyers Products 2 in. Forged SAE Trailer King Pins With 3/8 in. Bolster Plate, Weld On
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Buyers Products 2 in. Forged SAE Trailer King Pins With 3/8 in. Bolster Plate, Weld On

    $98.99
    Was $109.99Save $11.00
  2. Top Rated
    Buyers Products 2 in. Forged SAE Trailer King Pins With 1/4 in. Bolster Plate, Weld On
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    Buyers Products 2 in. Forged SAE Trailer King Pins With 1/4 in. Bolster Plate, Weld On

    $98.99
    Was $109.99Save $11.00
  3. Buyers Products 2 in. Forged SAE Trailer King Pins With 5/16 in. Bolster Plate, Weld On
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Buyers Products 2 in. Forged SAE Trailer King Pins With 5/16 in. Bolster Plate, Weld On

    $98.99
    Was $109.99Save $11.00
  4. CURT Universal 5th Wheel Brackets
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Universal 5th Wheel Brackets

    $124.27
  5. Top Rated
    CURT 5th Wheel Lube Plate, 10 in.
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    CURT 5th Wheel Lube Plate, 10 in.

    $13.49
    Was $14.99Save $1.50
  6. CURT 5th Wheel Safety Chain Anchors
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT 5th Wheel Safety Chain Anchors

    $179.99
  7. CURT Replacement A-Series 5th Wheel Handle
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement A-Series 5th Wheel Handle

    $35.99
    Was $39.99Save $4.00
  8. Top Rated
    CURT 5th Wheel Kingpin Lock for 2 in. Diameter Kingpins
    5.0 out of 5 stars with 2 reviews
    5.0 (2)

    CURT 5th Wheel Kingpin Lock for 2 in. Diameter Kingpins

    $49.49
    Was $54.99Save $5.50
  9. CURT Replacement A16 5th Wheel Legs
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement A16 5th Wheel Legs

    $140.89
  10. CURT Replacement E16 5th Wheel Handle
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement E16 5th Wheel Handle
  11. CURT Custom 5th Wheel Brackets for Select Ram 1500
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Custom 5th Wheel Brackets for Select Ram 1500

    $254.99
  12. CURT Replacement A20 5th Wheel Legs
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement A20 5th Wheel Legs

    $216.69

Items You May Like

  1. Top Rated
    Wallace Forge Forged King Pin, 3/8 in. Bolster
    5.0 out of 5 stars with 2 reviews
    5.0 (2)

    Wallace Forge Forged King Pin, 3/8 in. Bolster

    $72.89
    Was $80.99Save $8.10
  2. CURT 5th Wheel Lube Plates, 10 in., 25-Pack
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT 5th Wheel Lube Plates, 10 in., 25-Pack

    $202.49
    Was $224.99Save $22.50
  3. Top Rated
    CURT Replacement 5th Wheel Pins and Clips, 1/2 in. Diameter
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    CURT Replacement 5th Wheel Pins and Clips, 1/2 in. Diameter

    $13.49
    Was $14.99Save $1.50
  4. Top Rated
    CURT Replacement R-Series 5th Wheel Roller Wheel Kit
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    CURT Replacement R-Series 5th Wheel Roller Wheel Kit

    $13.49
    Was $14.99Save $1.50
  5. CURT Replacement Q-Series 5th Wheel Handle
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement Q-Series 5th Wheel Handle

    $40.49
    Was $44.99Save $4.50
  6. CURT E16 5th Wheel Wedge Kit, 16991
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT E16 5th Wheel Wedge Kit, 16991
  7. CURT Replacement E16 5th Wheel Head Attachment Pins
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement E16 5th Wheel Head Attachment Pins

    $22.49
    Was $24.99Save $2.50
  8. CURT A-Series 5th Wheel Wedge Kit
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT A-Series 5th Wheel Wedge Kit

    $54.39
  9. CURT E16 5th Wheel Hitch Head Adapter
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT E16 5th Wheel Hitch Head Adapter

    $91.68
  10. CURT Universal 5th Wheel Base Rails, 25K, Gloss Black, 16100
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Universal 5th Wheel Base Rails, 25K, Gloss Black, 16100

    $169.99
  11. CURT Replacement Q-Series 5th Wheel Head Attachment Pins
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement Q-Series 5th Wheel Head Attachment Pins

    $32.39
    Was $35.99Save $3.60
  12. RoadPro King Pin Lock Steel Antififth Wheel Hitch Lock and 2 Keys
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RoadPro King Pin Lock Steel Antififth Wheel Hitch Lock and 2 Keys

    $29.99

Customers Also Bought

  1. Buyers Products 2 in. 3-Position Cast Trailer Coupler
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    Buyers Products 2 in. 3-Position Cast Trailer Coupler

    $179.99
    Was $199.99Save $20.00
  2. CURT Custom 5th Wheel Brackets for Select Ram 2500 (Except with 5th Wheel Prep Package)
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Custom 5th Wheel Brackets for Select Ram 2500 (Except with 5th Wheel Prep Package)
  3. RoadPro 36 in. Heavy Duty 5Th Wheel Pin Puller Chrome-Plated Kingpin Yanker Tool
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    RoadPro 36 in. Heavy Duty 5Th Wheel Pin Puller Chrome-Plated Kingpin Yanker Tool

    $17.99
    Was $19.99Save $2.00
  4. Wallace Forge Gooseneck King Pin Ball Fifth Wheel Adapter
    4.2 out of 5 stars with 9 reviews
    4.2 (9)

    Wallace Forge Gooseneck King Pin Ball Fifth Wheel Adapter

    $185.39
    Was $205.99Save $20.60
  5. Top Rated
    RoadPro Brushed Aluminum Solid 5th Wheel Pin Puller 31.5 in. Fifth Wheel Puller, Green
    5.0 out of 5 stars with 3 reviews
    5.0 (3)

    RoadPro Brushed Aluminum Solid 5th Wheel Pin Puller 31.5 in. Fifth Wheel Puller, Green

    $13.49
    Was $14.99Save $1.50
  6. CURT Replacement 5th Wheel Top Clips
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement 5th Wheel Top Clips

    $26.99
    Was $29.99Save $3.00
  7. CURT Custom 5th Wheel Brackets for Select Nissan Titan
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Custom 5th Wheel Brackets for Select Nissan Titan

    $199.99
  8. Top Rated
    CURT 5th Wheel Lube Plate, 12 in.
    5.0 out of 5 stars with 1 reviews
    5.0 (1)

    CURT 5th Wheel Lube Plate, 12 in.

    $13.75
  9. CURT Replacement A25/A30 5th Wheel Legs
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Replacement A25/A30 5th Wheel Legs

    $207.14
  10. CURT Custom 5th Wheel Brackets for Select Ford F-150
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Custom 5th Wheel Brackets for Select Ford F-150

    $299.99
  11. CURT Universal 5th Wheel Base Rail and Bracket Hardware
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Universal 5th Wheel Base Rail and Bracket Hardware

    $72.83
  12. CURT Universal 5th Wheel Base Rail Bolts, 80-Pack
    0.0 out of 5 stars with 0 reviews
    0.0 (0)

    CURT Universal 5th Wheel Base Rail Bolts, 80-Pack

    $99.54

Reviews

Rating Snapshot

Select a row below to filter reviews.

5 starsstars

1
1 review with 5 stars.

4 starsstars

0
0 reviews with 4 stars.

3 starsstars

0
0 reviews with 3 stars.

2 starsstars

0
0 reviews with 2 stars.

1 starstars

0
0 reviews with 1 star.

Overall Rating

5.0

Review this Product

Select to rate the item with 1 star. This action will open submission form.
Select to rate the item with 2 stars. This action will open submission form.
Select to rate the item with 3 stars. This action will open submission form.
Select to rate the item with 4 stars. This action will open submission form.
Select to rate the item with 5 stars. This action will open submission form.
Adding a review will require a valid email for verification
1 to 0 of 1 Review .

1 Ratings-Only Review

Get the top deals, latest trends and more
Sign up for emails from Tractor Supply today.
First Name*
Last Name*
Email*

Customer Support

  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  

    (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

About Us

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

Work With Us

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

Neighbor's Club

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

Credit Center

  • TSC Credit Card

  • Klarna

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More

Stay Connected

Connect & Share with the Tractor Supply Community.

Tractor Supply App

Shop on the go with the Tractor Supply App

Learn More
  • Order Status

  • Return Policy

  • Delivery Options

  • Tax Exemptions

  • Frequently Asked Questions

  • Contact Us

  • Recall Notices

  • Call:  (877) 718-6750

  • Mon - Sat: 7am - 9pm CT

  • Sun: 8am - 7pm CT

  • Closed Christmas Day

  • Who We Are

  • Investor Relations

  • Stewardship

  • Community

  • Military Support

  • Product Catalog

  • Tractor Supply Stores

  • .Pharmacy Verified Website

  • Careers

  • Sponsorship

  • Affiliate Program

  • Potential Vendor Partners

  • Vendor Information

  • Tractor Supply Media Network

  • About

  • Rewards

  • Hometown Heroes

  • Frequently Asked Questions

  • Terms & Conditions

  • TSC Credit Card

  • Klarna

Connect & Share with the Tractor Supply Community.

Shop on the go with the Tractor Supply App

Learn More
  • Privacy policy
  • Your Privacy Choices
  • Terms and Conditions
  • California Transparency Act
  • Legal Notices
  • Accessibility
  • Responsible Disclosure Statement
  • Surprise (Balance) Medical Billing Disclosure
  • Transparency in Coverage
  • Human Rights Policy
  • Vendor Code of Conduct
  • California Notice of Collection
  • Privacy Requests

© 2026, Tractor Supply Co. All Rights Reserved.