Wellworth Toilet Repair Parts - K3998
By Kohler

Toilet leaky? Missing bolt caps? We offer the top Kohler repair parts on the internet, from fill valves to bolt caps. We have everything you need to make your Kohler Wellworth K3998 function like new. Scroll below and purchase now! For more Kohler parts, visit our page.

Kohler Wellworth toilet - Model - K3998

Kohler Toilet Replacement Parts for the Wellworth Toilet
Two-Piece Elongated Model #K-3998 - #K-4467 Tank

Wellworth Toilet repair parts diagram

Item # Part # Description Price & Quantity
1 1138565 Toilet Tank Cover Discontinued
2 1070291 Flush Valve Washer $3.31 Enter a quantity and
3 1059291 Flush Valve Seal $9.09 Enter a quantity and
4 1101470 Flush Valve Gasket $2.07 Enter a quantity and
5 51624 Screw Bolt (Each) - 3 Required $1.99 Enter a quantity and
6 1142714 Flush Valve Kit Temporarily Unavailable
7 51487 Tank to Bowl Gasket & Bolt Kit - includes gasket (1), washers (3), 5/16" bolts (3) and nuts (3) $14.53 Enter a quantity and
8 50752 Friction Ring $1.76 Enter a quantity and
9 1112257 Flush Valve Nut Discontinued
10 32572 Washer $1.49 Enter a quantity and
11 51533 Nut $1.57 Enter a quantity and
12 1013092 Bolt Caps (2) - White (view more color options) $7.50 Enter a quantity and
13 42397 Nut $1.90 Enter a quantity and
14 42398 Washer $1.57 Enter a quantity and
15 1057941 Shank Nut $1.59 Enter a quantity and
16 GP1083167 Class 5 Fill Valve $24.72 Enter a quantity and
17 85307 Shank Washer $1.67 Enter a quantity and
18 1057940 Top Assembly - for GP1083167 fill valve $6.63 Enter a quantity and
19 83143 Seal Diaphragm - for 1039862, 1059494, GP1083167 & GP1138930 fill valves $4.99 Enter a quantity and
20 1248135 Refill tube $1.49 Enter a quantity and
21 1468016 Replacement Fill Valve Kit Discontinued
22 78132 Retainer Nut $1.69 Enter a quantity and
23 1142713 Side Mount Trip Lever - Reversible - Chrome $16.76 Enter a quantity and

Not sure which model toilet you have? Try looking under the toilet tank lid or inside of the toilet tank.

Related Items & Information

Frequently Asked Questions

Q. "How do I find my Kohler model number?"
A. For our customers' convenience, we often list both the model number and the tank number of the Kohler toilets we offer parts for. If you already know your model number, that's great - but oftentimes this information won't be available to you. What you'll need to do then is look for the TANK number, which is right where you'd expect it to be on the inside of your toilet tank. Grab a flashlight, carefully remove your tank lid, place your lid somewhere safe, and look around inside your toilet tank for a 4-digit number beginning with either a 3 or a 4. Certain specialty toilets may have a 5-digit number starting with a 1. The number will be either molded into the porcelain or stamped on in blue or black ink. This is your tank number and you can use it to find the parts you need to fix your toilet.

Kohler toilet tank number molded into porcelain tank
Kohler toilet tank number stamped onto side of tank

Q. "There are letters and/or numbers after the model number inside my Kohler toilet tank - what do those mean?"
A. Kohler offers many variations of almost all their toilet models, and has experimented in the past with many different features. Typically, numbers (or a single letter/number combination like K4 or Y2) after the 4- or 5-digit model number indicate the color code for your toilet. If your model number is followed by letters, those usually have different meanings to indicate the features of your toilet or will indicate that you have a specialty Artist Edition toilet.

Code Meaning
AA Water-Guard toilet flushing system - Old flush system that has long been discontinued
EL Toilet with Elongated Bowl
K Eco Lite tank
L Bedpan lugs or a Pressure Lite flush system - Both older features that have been discontinued
RA Tank with RIGHT side trip lever
T Tank locking system (vandal-resistant feature usually on commercial toilets)
U Insuliner® lined toilet tank
UR Insuliner® lined toilet tank with RIGHT side trip lever
X Peacekeeper® seat actuated flushing system - Discontinued
Need a new toilet seat? We offer color-matching toilet seats for almost all the Kohler colors below!
Code Color Name Code Color Name Code Color Name
0 White 02 Spruce Green 03 Lavender
04 Suez Tan 06 Skylight 07 Black
08 Cerulean Blue 10 Peachblow 12 Jersey Cream
17 Teal 18 Sunrise 21 Avocado
24 Expresso 31 Harvest Gold 32 New Orleans Blue
33 Mexican Sand 34 Fresh Green 35 Pink Champagne
40 Parchment 41 Country Grey 42 Aspen Green
44 Swiss Chocolate 45 Wild Rose 47 Almond
49 French Vanilla 52 Navy 53 Raspberry Puree
55 Innocent Blush 56 Tender Grey 58 Thunder Grey
68 Heron Blue 71 Seafoam Green 85 Merlot
89 Desert Bloom 95 Ice Grey 96 Biscuit
97 Timberline 98 Chamois G9 Sandbar
K4 Cashmere NG Tea Green S1 Biscuit Satin
S2 White Satin W2 Earthen White Y2 Sunlight

Have questions about toilet parts or toilet repair?

Toilet Repair Information & FAQs

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