K3V63DT-9N2D 129-7988 118-9868 131-8937 133-6729 for CAT E312B E313B E311B

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Price： 965.00usd
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Payment Terms	TT/LC/
Supply Ability	300+
Part Name	Hydraulic pump
Qaulity	Top Quality
Applicable Industries	Machinery Repair Shops, Energy & Mining
Weight	98KG
Bucket Capacity	0.2 M3
Apply To Mode	kobelco / Hydraulic Excavator
Mechanical	Excavator
Brand Name	TGFQ
Model Number	SK60SR/SK70SR

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Product Details
Company Details

Product Specification


Payment Terms	TT/LC/	Supply Ability	300+
Part Name	Hydraulic pump	Qaulity	Top Quality
Applicable Industries	Machinery Repair Shops, Energy & Mining	Weight	98KG
Bucket Capacity	0.2 M3	Apply To Mode	kobelco / Hydraulic Excavator
Mechanical	Excavator	Brand Name	TGFQ
Model Number	SK60SR/SK70SR
High Light	CAT excavator replacement gear ，Excavator gear for E312B E313B ，K3V63DT-9N2D excavator parts

Product Introduction

For maintenance teams, this cuts repair time by 35% compared to universal pumps, while the risk of unexpected downtime (a major concern for CAT operators relying on B-series durability) drops by over 50—all thanks to zero mismatched components.​
Durability is a standout strength of the K3V63DT-9N2D, tailored to CAT E312B/E313B/E311B’s work environments. Key internal parts (like pistons and valve plates) are made from high-grade chromium-molybdenum alloy (50% more wear-resistant than standard steel), while the outer casing is reinforced with CAT-approved cast iron to withstand harsh conditions: constant dust exposure from urban construction sites, high-frequency vibration from rock digging, and sudden temperature shifts (from -5°C in winter to 55°C in summer). For operators and fleet managers, choosing this pump boosts the reliability of their CAT B-series machines, extends the equipment’s overall service life by 20% (matching CAT’s typical 6,000-hour maintenance interval), and trims long-term repair expenses by 40% by reducing frequent part swaps.​
Whether used to replace an aging original hydraulic pump (restoring CAT E312B/E313B/E311B’s hydraulic efficiency to 95% of new-machine levels) or stocked as a spare for proactive fleet upkeep (critical for construction firms with tight project deadlines), the K3V63DT-9N2D meets the high dependability and performance standards that CAT B-series owners expect. It has become a go-to solution for ensuring these excavators stay productive and efficient, no matter the job site’s complexity or environmental challenges.​
 ​Parts Show

Number	Part Number	Part Name	Quantity
		Req'd
1	5I-8749	Shaft	1
2	5I-8761	Cover	1
3	095-1718	Seal-O-Ring(ID=119.40MM)	2
	RRP
4	095-0882	Pin	4
	RRP
5	095-1209	Nut	4
6	5I-8760	Support	2
7	095-1783	Ring	2
	RRP
8	095-1584	Seal-O-Ring(ID=15.80MM)	2
	RRP
9	5I-8766	Piston	2
10	095-1698	Seal-O-Ring(ID=29.40MM)	2
	RRP
11	5I-8770	Ring	2
	RRP
12	5I-8767	Stopper	2
13	095-1575	Seal-O-Ring(ID=7.80MM)	18
	RRP
14	095-1717	Seal-O-Ring(ID=114.40MM)	2
	RRP
15	5I-8772	Eyebolt	2
16	5I-8774	Setscrew	2
17	185-8979	Piston AS	2
18	5I-8782	Pin AS	2
19	5I-8768	Stopper	2
20	5I-8773	Setscrew	2
21	5I-8750	Shaft	1
22	5I-8762	Cover	1
23	5I-8818	Bearing	2
	RRP
24	8T-0269	Bolt(L=20MM)	4
25	8T-6759	Plug	15
26	5I-8763	Body	2
27	129-7976	Retainer	2
28	5I-8765	Stopper	1
29	5I-8757	Spring	18
	RRP
30	127-5976	Barrel AS	1
31	5I-8816	Bearing	2
	RRP
32	133-6731	Gear(Z=32)	1
33	133-6730	Block	1
34	096-0014	Pin	2
	RRP
35	127-5975	Barrel AS	1
36	5I-8755	Plate	2
37	5I-8759	Plate	2
38	5I-8781	Plate AS	2
39	095-1711	Seal-O-Ring(ID=84.40MM)	2
	RRP
40	6V-5683	Bolt(L=16MM)	4
41	5I-8754	Spacer	4
42	6V-5200	Ring	2
	RRP
43	5I-8769	Seal	1
	RRP
44	096-3150	Plug	3
45	095-1585	Seal-O-Ring(ID=17.80MM)	4
	RRP
46	5I-8775	Adapter	1
47	102-2562	Bolt(L=180MM)	8
48	095-1574	Seal-O-Ring(ID=6.80MM)	1
	RRP
49	095-1777	Ring	1
	RRP
50	5I-8771	Seat	1
51	5H-1472	Ball	1
	RRP
52	095-1713	Seal-O-Ring(ID=94.40MM)	1

Why Choose TGFQ Over Other Excavator Part Dealers?​

TGFQ stands out with 3 unique advantages:​

Model-specific expertise: We don’t just sell parts—our team can cross-reference part numbers with your excavator’s VIN to ensure 100% fit (we’ve helped 500+ clients avoid “wrong part” delays in the past year).​

Flexible solutions for every client: Whether you’re a small repair shop needing 1 sample part (we accept orders as low as $50) or a large fleet needing 100+ engine Assemblys (we offer bulk discounts up to 15%), we adapt to your needs.​

Post-purchase support: Beyond delivery, we provide free maintenance guides (e.g., “How to Extend Hydraulic Pump Life”) and quarterly check-ins to update you on part upgrades for your machine model.​

With clients in 30+ countries (including repeat customers like a Southeast Asian construction firm that’s partnered with us for 10 years), TGFQ delivers more than parts—we deliver reliability you can count on.

Company Details

Bronze Gleitlager

Bronze Sleeve Bushings

and

Graphite Plugged Bushings

from Quality China Factory



Business Type:

Manufacturer,Trading Company 


Year Established:

2000 


Total Annual:

10 million-15 million


Employee Number:

>150 


Ecer Certification：

Verified Supplier 

TGFQ, manufacturing and trading combo, specializes in excavator gear parts and gearbox more than 20 years with professional team since 2000. After twenty years’ effort and development, now we have become one the leader manufacturers and suppliers in China. TGFQ's main pro... TGFQ, manufacturing and trading combo, specializes in excavator gear parts and gearbox more than 20 years with professional team since 2000. After twenty years’ effort and development, now we have become one the leader manufacturers and suppliers in China. TGFQ's main pro...

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Reach Us
Guangzhou Tiangong Machinery Equipment Co., Ltd.
8-109 No.1, West Da Sha Di Road, Whampoa District, Guangzhou, China
https://www.gztgfq.com/

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